diff --git a/git-p4 b/git-p4
index f12ad8b..89a85eb 100755
--- a/git-p4
+++ b/git-p4
@@ -31,7 +31,9 @@ def p4CmdList(cmd):
             result.append(entry)
     except EOFError:
         pass
-    pipe.close()
+    exitCode = pipe.close()
+    if exitCode != None:
+        result["p4ExitCode"] = exitCode
 
     return result