1 files changed, 4 insertions, 4 deletions

diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 97d76562a1a0..26d4d3fd6deb 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -23,10 +23,10 @@ if test -d ../../.git -o -f ../../.git &&
 then
         VN=$(echo "$VN" | sed -e 's/-/./g');
 else
-        eval `grep '^VERSION\s*=' ../../Makefile|tr -d ' '`
-        eval `grep '^PATCHLEVEL\s*=' ../../Makefile|tr -d ' '`
-        eval `grep '^SUBLEVEL\s*=' ../../Makefile|tr -d ' '`
-        eval `grep '^EXTRAVERSION\s*=' ../../Makefile|tr -d ' '`
+        eval $(grep '^VERSION[[:space:]]*=' ../../Makefile|tr -d ' ')
+        eval $(grep '^PATCHLEVEL[[:space:]]*=' ../../Makefile|tr -d ' ')
+        eval $(grep '^SUBLEVEL[[:space:]]*=' ../../Makefile|tr -d ' ')
+        eval $(grep '^EXTRAVERSION[[:space:]]*=' ../../Makefile|tr -d ' ')
 
         VN="${VERSION}.${PATCHLEVEL}.${SUBLEVEL}${EXTRAVERSION}"
 fi