diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 34cc530de..ec3a39692 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -1466,8 +1466,8 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
 					blendmode = PF_Translucent;
 					break;
 				default:
-					if (gr_linedef->alpha >= 0 && gr_linedef->alpha < FRACUNIT)
-						blendmode = HWR_TranstableToAlpha(R_GetLinedefTransTable(gr_linedef->alpha), &Surf);
+					if (gl_linedef->alpha >= 0 && gl_linedef->alpha < FRACUNIT)
+						blendmode = HWR_TranstableToAlpha(R_GetLinedefTransTable(gl_linedef->alpha), &Surf);
 					else
 						blendmode = PF_Masked;
 					break;