diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index cb2e5868c8e86404729ed8595a53262cb9e88fd7..d5020aeb5626495e160ffaa11e7f13aa91d58f4d 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -25,7 +25,7 @@ unexport MAKEFLAGS
 #
 ifeq ($(JOBS),)
   JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
-  ifeq ($(JOBS),)
+  ifeq ($(JOBS),0)
     JOBS := 1
   endif
 endif