diff --git a/.zap_real_crypto b/.zap_real_crypto
index 3d12ff5aabb551c4bf9a8dcb072ab1c0a008812b..80698918f0c8129fd093a706ab04729c8a4f37c6 100755
--- a/.zap_real_crypto
+++ b/.zap_real_crypto
@@ -3,7 +3,8 @@
 # .zap_real_crypto
 
 echo "Do you really want to delete all cryptography source files?"
-case `read` in
+read answer
+case $answer in
     y*|Y*)
 	rm -rf src/modules/_Crypto
 	rm -f lib/modules/Crypto/rsa.pike