1 files changed, 2 insertions, 0 deletions
diff --git a/tools/words b/tools/words
index ac76d0d..045c454 100755
--- a/tools/words
+++ b/tools/words
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+set -e
+
 if [ "$#" -ne 0 ]; then
     echo "Usage: $0"
     echo ""