diff --git a/x/shared/types/params_test.go b/x/shared/types/params_test.go
index f64cc33af..bb68a41ce 100644
--- a/x/shared/types/params_test.go
+++ b/x/shared/types/params_test.go
@@ -70,3 +70,33 @@ func TestParams_ValidateClaimWindowOpenOffsetBlocks(t *testing.T) {
 		})
 	}
 }
+
+func TestParams_ValidateClaimWindowCloseOffsetBlocks(t *testing.T) {
+	tests := []struct {
+		desc                         string
+		claimWindowCloseOffsetBlocks any
+		err                          error
+	}{
+		{
+			desc:                         "invalid type",
+			claimWindowCloseOffsetBlocks: "invalid",
+			err:                          ErrSharedParamInvalid.Wrapf("invalid parameter type: %T", "invalid"),
+		},
+		{
+			desc:                         "valid ClaimWindowCloseOffsetBlocks",
+			claimWindowCloseOffsetBlocks: uint64(4),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.desc, func(t *testing.T) {
+			err := ValidateClaimWindowCloseOffsetBlocks(tt.claimWindowCloseOffsetBlocks)
+			if tt.err != nil {
+				require.Error(t, err)
+				require.Contains(t, err.Error(), tt.err.Error())
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}