1 files changed, 2 insertions, 0 deletions
diff --git a/tools/filter b/tools/filter
index 94258d0..1c927be 100755
--- a/tools/filter
+++ b/tools/filter
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+set -e
+
 if [ -z "$1" ]; then
     echo "Usage: $0 <command>"
     echo ""