diff --git a/crates/parser/diagnostics/diagnostic_kind.rs b/crates/parser/diagnostics/diagnostic_kind.rs
index e03cb70..6931fe4 100644
--- a/crates/parser/diagnostics/diagnostic_kind.rs
+++ b/crates/parser/diagnostics/diagnostic_kind.rs
@@ -35,7 +35,7 @@ pub enum DiagnosticKind {
     FunctionMustContainBody = 1055,
     FunctionMustNotContainAnnotations = 1056,
     NestedClassesNotAllowed = 1057,
-    DirectiveNotAllowedInInterface = 1058,
+    UnexpectedDirective = 1058,
     FailedParsingAsDocTag = 1059,
     UnrecognizedAsDocTag = 1060,
     UnrecognizedProxy = 1061,
diff --git a/crates/parser/diagnostics/diagnostics_english_resources.rs b/crates/parser/diagnostics/diagnostics_english_resources.rs
index 192a7e7..32af52a 100644
--- a/crates/parser/diagnostics/diagnostics_english_resources.rs
+++ b/crates/parser/diagnostics/diagnostics_english_resources.rs
@@ -39,7 +39,7 @@ lazy_static! {
         DiagnosticKind::FunctionMustContainBody.id() => "Function must contain body.".into(),
         DiagnosticKind::FunctionMustNotContainAnnotations.id() => "Function must not contain annotations.".into(),
         DiagnosticKind::NestedClassesNotAllowed.id() => "Nested classes are not allowed.".into(),
-        DiagnosticKind::DirectiveNotAllowedInInterface.id() => "Directive not allowed in interface.".into(),
+        DiagnosticKind::UnexpectedDirective.id() => "Unexpected directive.".into(),
         DiagnosticKind::FailedParsingAsDocTag.id() => "Failed parsing contents of ASDoc tag: '@{1}'.".into(),
         DiagnosticKind::UnrecognizedAsDocTag.id() => "Unrecognized ASDoc tag: '@{1}'.".into(),
         DiagnosticKind::UnrecognizedProxy.id() => "Unrecognized proxy: '{1}'.".into(),
diff --git a/crates/parser/parser/parser.rs b/crates/parser/parser/parser.rs
index d424750..1d82cc4 100644
--- a/crates/parser/parser/parser.rs
+++ b/crates/parser/parser/parser.rs
@@ -3727,14 +3727,11 @@ impl<'input> Parser<'input> {
 
         // Body verification.
         //
-        // Interface methods are skipped in the verification as they
-        // may omit body.
-        if !interface_method {
-            if (has_native || has_abstract) && common.body.is_some() {
-                self.add_syntax_error(&name.location(), DiagnosticKind::FunctionMustNotContainBody, diagarg![]);
-            } else if !(has_native || has_abstract) && common.body.is_none() {
-                self.add_syntax_error(&name.location(), DiagnosticKind::FunctionMustContainBody, diagarg![]);
-            }
+        // Note that interface methods must have a body unlike in Java.
+        if (has_native || has_abstract) && common.body.is_some() {
+            self.add_syntax_error(&name.location(), DiagnosticKind::FunctionMustNotContainBody, diagarg![]);
+        } else if (interface_method || !(has_native || has_abstract)) && common.body.is_none() {
+            self.add_syntax_error(&name.location(), DiagnosticKind::FunctionMustContainBody, diagarg![]);
         }
 
         // Interface methods must not contain any annotations except for meta-data.
@@ -3921,7 +3918,7 @@ impl<'input> Parser<'input> {
         // Interface block must only contain function definitions
         for directive in block.directives.iter() {
             if !(matches!(directive.as_ref(), Directive::FunctionDefinition(_))) {
-                self.add_syntax_error(&directive.location(), DiagnosticKind::DirectiveNotAllowedInInterface, diagarg![]);
+                self.add_syntax_error(&directive.location(), DiagnosticKind::UnexpectedDirective, diagarg![]);
             }
         }
 
diff --git a/crates/parser_test/Cargo.toml b/crates/parser_test/Cargo.toml
index fc873d6..ba62f77 100644
--- a/crates/parser_test/Cargo.toml
+++ b/crates/parser_test/Cargo.toml
@@ -17,7 +17,7 @@ path = "main.rs"
 [dependencies]
 clap = { version = "4.4.8", features = ["derive"] }
 file_paths = "1.0.0"
-as3_parser = { path = "../parser", version = "1.0" }
+as3_parser = { path = "../parser", version = "1" }
 maplit = "1.0.2"
 serde = { version = "1.0.192", features = ["rc", "derive"] }
 serde_json = "1.0.108"
diff --git a/demo/Cargo.toml b/demo/Cargo.toml
index 4c5f005..7614571 100644
--- a/demo/Cargo.toml
+++ b/demo/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-as3_parser = { path = "../crates/parser", version = "1.0" }
+as3_parser = { path = "../crates/parser", version = "1" }
 maplit = "1.0.2"
 serde = { version = "1.0.192", features = ["rc", "derive"] }
 serde_json = "1.0.108"
diff --git a/examples/asdoc/Cargo.toml b/examples/asdoc/Cargo.toml
index 8472705..d7c7409 100644
--- a/examples/asdoc/Cargo.toml
+++ b/examples/asdoc/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-as3_parser = { path = "../../crates/parser", version = "1.0" }
+as3_parser = { path = "../../crates/parser", version = "1" }
 
 [[example]]
 name = "asdoc"