diff --git a/libibverbs/cmd_fallback.c b/libibverbs/cmd_fallback.c
index 7caa28db5..ba38b9170 100644
--- a/libibverbs/cmd_fallback.c
+++ b/libibverbs/cmd_fallback.c
@@ -63,7 +63,7 @@ enum write_fallback _check_legacy(struct ibv_command_buffer *cmdb, int *ret)
 	}
 
 	if (fallback_ioctl_only)
-		return ERROR;
+		goto not_supp;
 
 	if (fallback_require_ex)
 		return TRY_WRITE_EX;