diff --git a/include/JSystem/JUtility/JUTAssert.h b/include/JSystem/JUtility/JUTAssert.h
index 7c41efccc21..81c898e6a77 100644
--- a/include/JSystem/JUtility/JUTAssert.h
+++ b/include/JSystem/JUtility/JUTAssert.h
@@ -63,7 +63,7 @@ namespace JUTAssertion {
 
     u32 getSDevice();
     void showAssert_f(u32 device, const char* file, int line, const char* msg, ...);
-    void showAssert_f_va(u32 device, const char* file, int line, const char* msg, __va_list args);
+    void showAssert_f_va(u32 device, const char* file, int line, const char* msg, va_list args);
     void setWarningMessage_f(u32 device, char * file, int line, const char * fmt, ...);
     void setWarningMessage_f_va(u32 device, const char* file, int line, const char* msg, va_list args);
     void setLogMessage_f(u32 device, char* file, int line, const char* fmt, ...);