diff --git a/src/parallels/parallels_utils.c b/src/parallels/parallels_utils.c
index 35766b72b56d9bda6f3348d971c947f9969cfbe2..89a0d8979e5cd38237b2c03e64f3485f2b6adc75 100644
--- a/src/parallels/parallels_utils.c
+++ b/src/parallels/parallels_utils.c
@@ -55,7 +55,7 @@ parallelsDoCmdRun(char **outbuf, const char *binary, va_list list)
   cleanup:
     VIR_FREE(scmd);
     virCommandFree(cmd);
-    if (ret)
+    if (ret && outbuf)
         VIR_FREE(*outbuf);
     return ret;
 }