diff --git a/build-debian.sh b/build-debian.sh
index be79806..116011e 100755
--- a/build-debian.sh
+++ b/build-debian.sh
@@ -37,7 +37,8 @@ if [ "x${PHP_VER}" = "x" ]; then
 	exit 1
 fi
 
-PHP_SRC="$(dpkg-query -W -f='${Version}' php5)"
+PHP_SRC1="$(dpkg-query -W -f='${Version}' php5)"
+PHP_SRC=${PHP_SRC1%*-*}
 
 if [ ! -f "${PHP_SRC}" ]; then
 	apt-get source php5