diff --git a/ada/ast.py b/ada/ast.py
index 2ad37ebec..02c61b419 100644
--- a/ada/ast.py
+++ b/ada/ast.py
@@ -362,10 +362,16 @@ def complete():
         return origin.bind(
             Self.origin_node,
             Entity.complete_items.filter(
-                # This property filters out `SyntheticSubpDecl` items
-                # because they are of no use for completion. Additional
-                # filtering can be done in `complete_items`.
-                lambda n: n.decl.cast(T.SyntheticSubpDecl).is_null
+                # This property filters out `SyntheticSubpDecl` and
+                # `SyntheticObjectDecl` items because they are of no use for
+                # completion. This is not entirely true for
+                # `SyntheticObjectDecl` since they can be useful in type
+                # predicate aspects (yet not implemented since no likely
+                # helpful). Additional filtering can be done in
+                # `complete_items`.
+                lambda n: Not(
+                    n.decl.is_a(T.SyntheticSubpDecl, T.SyntheticObjectDecl)
+                )
             ).to_iterator
         )
 
diff --git a/testsuite/tests/properties/complete/test.out b/testsuite/tests/properties/complete/test.out
index 3ae2f594d..a3df2976f 100644
--- a/testsuite/tests/properties/complete/test.out
+++ b/testsuite/tests/properties/complete/test.out
@@ -316,8 +316,7 @@ Working on node <SubtypeDecl ["Drum_Unit"] disass.adb:18:4-21:4>
 ================================================================
 
 Eval 'list(node.f_subtype.f_constraint.p_complete)'
-Result: [<CompletionItem decl=<SyntheticObjectDecl ["Drum_Unit"] disass.adb:18:4-21:4> is_dot_call=False is_visible=True weight=0>,
-         <CompletionItem decl=<EnumLiteralDecl ["Closed"] disass.adb:4:29-4:35> is_dot_call=False is_visible=True weight=0>,
+Result: [<CompletionItem decl=<EnumLiteralDecl ["Closed"] disass.adb:4:29-4:35> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ConcreteTypeDecl ["Device"] disass.adb:3:4-3:41> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<EnumLiteralDecl ["Disk"] disass.adb:3:29-3:33> is_dot_call=False is_visible=True weight=100>,
          <CompletionItem decl=<EnumLiteralDecl ["Drum"] disass.adb:3:35-3:39> is_dot_call=False is_visible=True weight=100>,
@@ -688,8 +687,7 @@ Working on node <Id "B" subtype_indication.adb:20:22-20:23>
 ===========================================================
 
 Eval 'list(node.p_complete)'
-Result: [<CompletionItem decl=<SyntheticObjectDecl ["Babar"] subtype_indication.adb:20:4-20:23> is_dot_call=False is_visible=True weight=0>,
-         <CompletionItem decl=<ObjectDecl ["A"] subtype_indication.adb:2:4-2:10> is_dot_call=False is_visible=True weight=0>,
+Result: [<CompletionItem decl=<ObjectDecl ["A"] subtype_indication.adb:2:4-2:10> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ObjectDecl ["B"] subtype_indication.adb:10:4-10:10> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ConcreteTypeDecl ["Babar"] subtype_indication.adb:20:4-20:23> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ConcreteTypeDecl ["Bar"] subtype_indication.adb:15:4-15:28> is_dot_call=False is_visible=True weight=100>,
@@ -1016,7 +1014,6 @@ Working on node <ComponentDecl ["A"] subtype_indication.adb:34:7-34:13>
 
 Eval 'list(node.f_component_def.f_type_expr.f_name.p_complete)'
 Result: [<CompletionItem decl=<ComponentDecl ["A"] subtype_indication.adb:34:7-34:13> is_dot_call=False is_visible=True weight=0>,
-         <CompletionItem decl=<SyntheticObjectDecl ["T"] subtype_indication.adb:33:4-36:15> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ObjectDecl ["A"] subtype_indication.adb:2:4-2:10> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ObjectDecl ["B"] subtype_indication.adb:10:4-10:10> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ConcreteTypeDecl ["Babar"] subtype_indication.adb:20:4-20:23> is_dot_call=False is_visible=True weight=100>,
@@ -1083,7 +1080,6 @@ Working on node <ConcreteTypeDecl ["T"] subtype_indication.adb:38:4-38:34>
 
 Eval 'list(node.f_discriminants.f_discr_specs[0].f_type_expr.f_name.p_complete)'
 Result: [<CompletionItem decl=<DiscriminantSpec ["D"] subtype_indication.adb:38:12-38:17> is_dot_call=False is_visible=True weight=0>,
-         <CompletionItem decl=<SyntheticObjectDecl ["T"] subtype_indication.adb:38:4-38:34> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ObjectDecl ["A"] subtype_indication.adb:2:4-2:10> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ObjectDecl ["B"] subtype_indication.adb:10:4-10:10> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<ConcreteTypeDecl ["Babar"] subtype_indication.adb:20:4-20:23> is_dot_call=False is_visible=True weight=100>,
@@ -1149,12 +1145,10 @@ Working on node <DottedName test_pkg-foo.adb:8:7-10:10>
 =======================================================
 
 Eval 'list(node.p_complete)'
-Result: [<CompletionItem decl=<SyntheticObjectDecl ["A"] test_pkg.ads:4:4-4:50> is_dot_call=False is_visible=True weight=0>,
-         <CompletionItem decl=<SubpDecl ["My_Method"] test_pkg.ads:6:4-6:49> is_dot_call=True is_visible=True weight=75>,
+Result: [<CompletionItem decl=<SubpDecl ["My_Method"] test_pkg.ads:6:4-6:49> is_dot_call=True is_visible=True weight=75>,
          <CompletionItem decl=<SubpDecl ["My_Body_Method"] test_pkg.adb:6:4-6:54> is_dot_call=True is_visible=True weight=75>,
          <CompletionItem decl=<SubpBody ["My_Method"] test_pkg.adb:8:4-11:18> is_dot_call=True is_visible=True weight=75>,
          <CompletionItem decl=<SubpBody ["My_Body_Method"] test_pkg.adb:13:4-18:23> is_dot_call=True is_visible=True weight=75>,
-         <CompletionItem decl=<SyntheticObjectDecl ["Base_Type"] base.ads:2:4-2:41> is_dot_call=False is_visible=True weight=0>,
          <CompletionItem decl=<NullSubpDecl ["Base_Method"] base.ads:3:4-3:53> is_dot_call=True is_visible=True weight=75>]
 
 Working on node <CallStmt testcomp.adb:7:4-9:4>
@@ -1182,10 +1176,8 @@ Working on node <CallStmt testcomp.adb:19:4-21:1>
 =================================================
 
 Eval 'list(node.f_call.p_complete)'
-Result: [<CompletionItem decl=<SyntheticObjectDecl ["A"] test_pkg.ads:4:4-4:50> is_dot_call=False is_visible=True weight=0>,
-         <CompletionItem decl=<SubpDecl ["My_Method"] test_pkg.ads:6:4-6:49> is_dot_call=True is_visible=True weight=75>,
+Result: [<CompletionItem decl=<SubpDecl ["My_Method"] test_pkg.ads:6:4-6:49> is_dot_call=True is_visible=True weight=75>,
          <CompletionItem decl=<SubpDecl ["My_Body_Method"] test_pkg.adb:6:4-6:54> is_dot_call=True is_visible=True weight=75>,
          <CompletionItem decl=<SubpBody ["My_Method"] test_pkg.adb:8:4-11:18> is_dot_call=True is_visible=True weight=75>,
          <CompletionItem decl=<SubpBody ["My_Body_Method"] test_pkg.adb:13:4-18:23> is_dot_call=True is_visible=True weight=75>,
-         <CompletionItem decl=<SyntheticObjectDecl ["Base_Type"] base.ads:2:4-2:41> is_dot_call=False is_visible=False weight=0>,
          <CompletionItem decl=<NullSubpDecl ["Base_Method"] base.ads:3:4-3:53> is_dot_call=True is_visible=True weight=75>]