diff --git a/llvm/configure b/llvm/configure
index 8c6270dd89fd..e9aba06ad48f 100755
--- a/llvm/configure
+++ b/llvm/configure
@@ -14,7 +14,7 @@
 ## M4sh Initialization.  ##
 ## --------------------- ##
 
-# Be Bourne compatible
+# Be Bourne compatible.
 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   emulate sh
   NULLCMD=: