diff --git a/patch.sh b/patch.sh
index 93a5c02..1e47229 100644
--- a/patch.sh
+++ b/patch.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -euo pipefail
 
 BINARY_FILE=$1
 PATTERN="48 89 C1 48 8B 84 24 ?? ?? ?? ?? E8 ?? ?? ?? ?? 48 85 C0 74 53"