diff --git a/build_iwd.sh b/build_iwd.sh
index 7095c0e..4f5c98b 100755
--- a/build_iwd.sh
+++ b/build_iwd.sh
@@ -16,7 +16,7 @@ iwd_files()
 		! -path "*/demos/**" \
 		! -name "*.sh" \
 		! -name "*.iwd" |\
-		sed "s:${WORKSPACE}/::g"
+		sed "s;${WORKSPACE}/;;g"
 }
 
 iwd_filelist="$(mktemp)"