diff --git a/keyword_space.sed b/keyword_space.sed
index e05c8b9df2..39a43c7765 100644
--- a/keyword_space.sed
+++ b/keyword_space.sed
@@ -1,5 +1,5 @@
 s/if(/if (/
-s/switch(/switch(/
+s/switch(/switch (/
 s/case(/case (/
 s/while(/while (/
 s/for(/for (/