diff --git a/Source/Core/VideoBackends/OGL/Render.cpp b/Source/Core/VideoBackends/OGL/Render.cpp
index 99dd6548be..e669490e60 100644
--- a/Source/Core/VideoBackends/OGL/Render.cpp
+++ b/Source/Core/VideoBackends/OGL/Render.cpp
@@ -719,9 +719,9 @@ void Renderer::DrawDebugInfo()
 			debug_info += " - ";
 		if (SConfig::GetInstance().m_ShowFrameCount)
 		{
-			debug_info += StringFromFormat("Frame: %lu", Movie::g_currentFrame);
+			debug_info += StringFromFormat("Frame: %llu", (unsigned long long) Movie::g_currentFrame);
 			if (Movie::IsPlayingInput())
-				debug_info += StringFromFormat(" / %lu", Movie::g_totalFrames);
+				debug_info += StringFromFormat(" / %llu", (unsigned long long) Movie::g_totalFrames);
 		}
 
 		debug_info += "\n";