1 files changed, 2 insertions, 0 deletions
diff --git a/src/terminal.c b/src/terminal.c
index e3b666ba61d..ef2f0c34c22 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -445,6 +445,8 @@ possible return values.  */)
       return Qpc;
     case output_ns:
       return Qns;
+    case output_pgtk:
+      return Qpgtk;
     default:
       emacs_abort ();
     }