diff --git a/sapi/thttpd/thttpd.c b/sapi/thttpd/thttpd.c
index a29217defc3..4f196973ca1 100644
--- a/sapi/thttpd/thttpd.c
+++ b/sapi/thttpd/thttpd.c
@@ -371,7 +371,7 @@ static zend_module_entry php_thttpd_module = {
 
 static int php_thttpd_startup(sapi_module_struct *sapi_module)
 {
-#if PHP_API >= 20020918
+#if PHP_API_VERSION >= 20020918
 	if (php_module_startup(sapi_module, &php_thttpd_module, 1) == FAILURE) {
 #else
 	if (php_module_startup(sapi_module) == FAILURE