diff --git a/ChangeLog b/ChangeLog
index 6a374ebaff..50e7468eea 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2000-08-28  Sven Neumann  <sven@gimp.org>
+
+	* plug-ins/script-fu/script-fu.c: add missing cases to switch 
+	statement.
+
 2000-08-28  Sven Neumann  <sven@gimp.org>
 
 	* libgimp/gimpchainbutton.[ch]: emit a "toggled" signal. This
diff --git a/plug-ins/script-fu/script-fu.c b/plug-ins/script-fu/script-fu.c
index 728c670f31..b8f5a067f8 100644
--- a/plug-ins/script-fu/script-fu.c
+++ b/plug-ins/script-fu/script-fu.c
@@ -794,11 +794,13 @@ marshall_proc_db_call (LISP a)
 	  lprin1s (a_saved, error_str + strlen(error_str));
       return my_err (error_str, NIL);
       break;
+
     case GIMP_PDB_CALLING_ERROR:
 	  strcpy (error_str, "Procedural database execution failed on invalid input arguments:\n    ");
 	  lprin1s (a_saved, error_str + strlen(error_str));
       return my_err (error_str, NIL);
       break;
+
     case GIMP_PDB_SUCCESS:
       return_val = NIL;
 
@@ -949,6 +951,10 @@ marshall_proc_db_call (LISP a)
 	    }
 	}
       break;
+
+    case GIMP_PDB_PASS_THROUGH:
+    case GIMP_PDB_CANCEL:   /*  should we do something here?  */
+      break;
     }
 
   /*  free up the executed procedure return values  */