diff --git a/Zend/zend_ast.c b/Zend/zend_ast.c
index 81562411e6b0c..5ecda76870452 100644
--- a/Zend/zend_ast.c
+++ b/Zend/zend_ast.c
@@ -290,7 +290,7 @@ ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_va(
 	return ast;
 }
 
-ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_n(unsigned kind, ...) {
+ZEND_API zend_ast * zend_ast_create_n(unsigned kind, ...) {
 	va_list va;
 	va_start(va, kind);
 	zend_ast *ast = zend_ast_create_va(kind, 0, &va);
@@ -298,7 +298,7 @@ ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_n(unsigned kind, ...) {
 	return ast;
 }
 
-ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_ex_n(
+ZEND_API zend_ast * zend_ast_create_ex_n(
 		zend_ast_kind kind, unsigned attr, ...) {
 	va_list va;
 	va_start(va, attr);
diff --git a/Zend/zend_ast.h b/Zend/zend_ast.h
index df33d5c35ef05..8d1d93f2564a7 100644
--- a/Zend/zend_ast.h
+++ b/Zend/zend_ast.h
@@ -249,8 +249,8 @@ ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_5(zend_ast_kind kind, zend_ast
 
 ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_va(zend_ast_kind kind, zend_ast_attr attr, va_list *va);
 /* Need to use unsigned args to avoid va promotion UB. */
-ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_n(unsigned kind, ...);
-ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_ex_n(zend_ast_kind kind, unsigned attr, ...);
+ZEND_API zend_ast * zend_ast_create_n(unsigned kind, ...);
+ZEND_API zend_ast * zend_ast_create_ex_n(zend_ast_kind kind, unsigned attr, ...);
 
 static zend_always_inline zend_ast * zend_ast_create_ex_0(zend_ast_kind kind, zend_ast_attr attr) {
 	zend_ast *ast = zend_ast_create_0(kind);