diff --git a/build-source.sh b/build-source.sh
index d4f19552..6cdcc92c 100755
--- a/build-source.sh
+++ b/build-source.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-VERSION=$(git describe --tags)
+VERSION=$(git describe --tags --dirty=+)
 
 FILE_PATTERN="--exclude-vcs --exclude-vcs-ignores ."