diff --git a/pear/pear.m4 b/pear/pear.m4
index 449c0b7b066..1a3cdec894b 100644
--- a/pear/pear.m4
+++ b/pear/pear.m4
@@ -44,6 +44,7 @@ PHP_CONFIG_NICE(config.nice)
 AC_PROG_CC
 AC_PROG_CC_C_O
 
+PHP_RUNPATH_SWITCH
 PHP_SHLIB_SUFFIX_NAME
 PHP_WITH_PHP_CONFIG