diff --git a/plugins/php/versions/54/apc.sh b/plugins/php/versions/54/apc.sh
index d1475f843..895a38be8 100755
--- a/plugins/php/versions/54/apc.sh
+++ b/plugins/php/versions/54/apc.sh
@@ -12,6 +12,7 @@ serverPath=$(dirname "$rootPath")
 sourcePath=${serverPath}/source/php
 
 LIBNAME=apc
+_LIBNAME=$(echo $LIBNAME | tr '[a-z]' '[A-Z]')
 LIBV=3.1.9
 sysName=`uname`
 actionType=$1
@@ -36,12 +37,12 @@ Install_lib()
 
 		php_lib=$sourcePath/php_lib
 		mkdir -p $php_lib
-		if [ ! -d $php_lib/${LIBNAME}-${LIBV} ];then
+		if [ ! -d $php_lib/${_LIBNAME}-${LIBV} ];then
 			_LIBNAME=$(echo $LIBNAME | tr '[a-z]' '[A-Z]')
 			wget -O $php_lib/${LIBNAME}-${LIBV}.tgz http://pecl.php.net/get/${_LIBNAME}-${LIBV}.tgz
 			cd $php_lib && tar xvf ${LIBNAME}-${LIBV}.tgz
 		fi 
-		cd $php_lib/${LIBNAME}-${LIBV}
+		cd $php_lib/${_LIBNAME}-${LIBV}
 
 		$serverPath/php/$version/bin/phpize
 		./configure --with-php-config=$serverPath/php/$version/bin/php-config