diff --git a/1988/westley/demo.sh b/1988/westley/demo.sh
index b14f9975e..d2d46266c 100755
--- a/1988/westley/demo.sh
+++ b/1988/westley/demo.sh
@@ -1,14 +1,16 @@
 #!/usr/bin/env bash
 
 clear
+
+if [[ ! -x "westley" ]]; then
+    echo "$ cc westley.c -o westley"
+    cc -std=gnu89 -Wno-error -Wno-implicit-function-declaration -Wno-return-type    -O3 westley.c -o westley || exit 1
+fi
+
 echo "$ cat westley.c"
 cat westley.c
-
 sleep 1
 
-echo "$ cc westley.c -o westley"
-cc -std=gnu89 -Wno-error -Wno-implicit-function-declaration -Wno-return-type    -O3 westley.c -o westley || exit 1
-
 echo "$ ./westley"
 ./westley