diff --git a/Zend/zend_exceptions.h b/Zend/zend_exceptions.h
index 3c4db722e22..f69e696fd8f 100644
--- a/Zend/zend_exceptions.h
+++ b/Zend/zend_exceptions.h
@@ -30,7 +30,7 @@ ZEND_API void zend_exception_set_previous(zval *exception, zval *add_previous TS
 ZEND_API void zend_exception_save(TSRMLS_D);
 ZEND_API void zend_exception_restore(TSRMLS_D);
 
-void zend_throw_exception_internal(zval *exception TSRMLS_DC);
+ZEND_API void zend_throw_exception_internal(zval *exception TSRMLS_DC);
 
 void zend_register_default_exception(TSRMLS_D);