diff --git a/ext/libxml/php_libxml2.def b/ext/libxml/php_libxml2.def
index 9557b3e34ef..f38d544b722 100644
--- a/ext/libxml/php_libxml2.def
+++ b/ext/libxml/php_libxml2.def
@@ -1389,7 +1389,6 @@ xmlXPathCmpNodes
 xmlXPathCompareValues
 xmlXPathCompile
 xmlXPathCompiledEval
-xmlXPathCompiledEvalToBoolean
 xmlXPathConcatFunction
 xmlXPathContainsFunction
 xmlXPathContextSetCache