diff --git a/build.sh b/build.sh
index 62bf528..8d3e11c 100755
--- a/build.sh
+++ b/build.sh
@@ -161,7 +161,7 @@ for repoTag in "${repos[@]}"; do
 		gitRef="${commitDir%% *}"
 		gitDir="${commitDir#* }"
 		if [ "$gitDir" = "$commitDir" ]; then
-			gitDir=''
+			gitDir=
 		fi
 		
 		gitRepo="${gitUrl#*://}"