diff --git a/src/elements/tron.c b/src/elements/tron.c
index 83d293a6c..90b75fd80 100644
--- a/src/elements/tron.c
+++ b/src/elements/tron.c
@@ -61,7 +61,7 @@ int trymovetron(int x, int y, int dir, int i, int len)
 			for (tx = rx - tron_ry[dir] , ty = ry - tron_rx[dir], j=1; abs(tx-rx) < (len-k) && abs(ty-ry) < (len-k); tx-=tron_ry[dir],ty-=tron_rx[dir],j++)
 			{
 				r = pmap[ty][tx];
-				if (!r && !bmap[(ty)/CELL][(tx)/CELL] && ry > CELL && rx > CELL && ry < YRES-CELL && rx < XRES-CELL)
+				if (!r && !bmap[(ty)/CELL][(tx)/CELL] && ty > CELL && tx > CELL && ty < YRES-CELL && tx < XRES-CELL)
 				{
 					if (j == (len-k))//there is a safe path, so we can break out
 						return len+1;
@@ -73,7 +73,7 @@ int trymovetron(int x, int y, int dir, int i, int len)
 			for (tx = rx + tron_ry[dir] , ty = ry + tron_rx[dir], j=1; abs(tx-rx) < (len-k) && abs(ty-ry) < (len-k); tx+=tron_ry[dir],ty+=tron_rx[dir],j++)
 			{
 				r = pmap[ty][tx];
-				if (!r && !bmap[(ty)/CELL][(tx)/CELL] && ry > CELL && rx > CELL && ry < YRES-CELL && rx < XRES-CELL)
+				if (!r && !bmap[(ty)/CELL][(tx)/CELL] && ty > CELL && tx > CELL && ty < YRES-CELL && tx < XRES-CELL)
 				{
 					if (j == (len-k))
 						return len+1;