diff --git a/DebianMed/edam.sh b/DebianMed/edam.sh
index 7edba02..1a16a63 100755
--- a/DebianMed/edam.sh
+++ b/DebianMed/edam.sh
@@ -5,6 +5,8 @@
 #        * "main license" (Files: *)
 #        * Upstream-Contact
 
+set -e
+
 usage() {
 cat >/dev/stderr <<EOT
 Usage: $0 [option]