diff --git a/src/d_main.cpp b/src/d_main.cpp
index efa8ca8783..11ccc6cabd 100644
--- a/src/d_main.cpp
+++ b/src/d_main.cpp
@@ -383,9 +383,9 @@ void D_Render(std::function<void()> action, bool interpolate)
 	for (auto Level : AllLevels())
 	{
 		// Check for the presence of dynamic lights at the start of the frame once.
-		if ((gl_lights && vid_rendermode == 4) || (r_dynlights && vid_rendermode != 4))
+		if ((gl_lights && vid_rendermode == 4) || (r_dynlights && vid_rendermode != 4) || Level->LightProbes.Size() > 0)
 		{
-			Level->HasDynamicLights = !!Level->lights;
+			Level->HasDynamicLights = Level->lights || Level->LightProbes.Size() > 0;
 		}
 		else Level->HasDynamicLights = false;	// lights are off so effectively we have none.
 		if (interpolate) Level->interpolator.DoInterpolations(I_GetTimeFrac());