diff --git a/bin/compile b/bin/compile
index 0517c29b80c6e7fe672028ca8655eba02c293168..bbb0046a5ed85bd07ee9ffb4abbf8206c884d836 100755
--- a/bin/compile
+++ b/bin/compile
@@ -47,7 +47,7 @@ if [ -f "lib/python2.7" ]; then
   exit 1;
 fi
 
-# copy artifacts out of cache if exists
+# Copy artifacts out of cache if exists.
 mkdir -p $CACHE_DIR
 for dir in $VIRTUALENV_DIRS; do
   cp -R $CACHE_DIR/$dir . &> /dev/null || true