diff --git a/src/p_spec.c b/src/p_spec.c
index 9a1ed4e9f..307cca05f 100644
--- a/src/p_spec.c
+++ b/src/p_spec.c
@@ -7460,6 +7460,9 @@ static boolean P_FadeFakeFloor(ffloor_t *rover, INT16 destvalue, INT16 speed,
 	INT32 alpha;
 	fade_t *fadingdata = (fade_t *)rover->fadingdata;
 
+	if (rover->master->special == 258) // Laser block
+		return false;
+
 	if (fadingdata)
 		alpha = fadingdata->alpha;
 	else