diff --git a/Makefile b/Makefile
index 94c7adf5..15edf24c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-BASTILLE_VERSION=$$(git rev-parse HEAD)
+BASTILLE_VERSION=$$(git rev-parse --short HEAD)
 
 .PHONY: all
 all: