diff --git a/1988/westley/demo.sh b/1988/westley/demo.sh
index 050823120..b14f9975e 100755
--- a/1988/westley/demo.sh
+++ b/1988/westley/demo.sh
@@ -7,7 +7,7 @@ cat westley.c
 sleep 1
 
 echo "$ cc westley.c -o westley"
-cc -std=gnu89 -Wall -Wextra -pedantic -Wno-error -Wno-implicit-function-declaration -Wno-return-type    -O3 westley.c -o westley 2>/dev/null
+cc -std=gnu89 -Wno-error -Wno-implicit-function-declaration -Wno-return-type    -O3 westley.c -o westley || exit 1
 
 echo "$ ./westley"
 ./westley