1 files changed, 12 insertions, 3 deletions
diff --git a/src/vhdl/vhdl-sem_names.adb b/src/vhdl/vhdl-sem_names.adb
index ffd3116e5..c6566324b 100644
--- a/src/vhdl/vhdl-sem_names.adb
+++ b/src/vhdl/vhdl-sem_names.adb
@@ -1765,9 +1765,13 @@ package body Vhdl.Sem_Names is
       Subprg : Iir;
    begin
       --  We cares only of signals.
-      if Get_Kind (Obj) /= Iir_Kind_Signal_Declaration then
-         return;
-      end if;
+      case Get_Kind (Obj) is
+         when Iir_Kind_Signal_Declaration
+           | Iir_Kind_Interface_Signal_Declaration =>
+            null;
+         when others =>
+            return;
+      end case;
       --  We cares only of subprograms.  Give up if we are in a process.
       Subprg := Sem_Stmts.Get_Current_Subprogram;
       if Subprg = Null_Iir
@@ -1775,6 +1779,11 @@ package body Vhdl.Sem_Names is
       then
          return;
       end if;
+      if Get_Kind (Obj) = Iir_Kind_Interface_Signal_Declaration
+        and then Get_Parent (Obj) = Subprg
+      then
+         return;
+      end if;
       if Get_Kind (Get_Library_Unit (Sem.Get_Current_Design_Unit))
         = Iir_Kind_Package_Body
       then