diff --git a/src/map.odin b/src/map.odin
index c9964b6..a1911c0 100644
--- a/src/map.odin
+++ b/src/map.odin
@@ -149,6 +149,10 @@ check_map_collision :: proc(rect: rl.Rectangle, game_map: Game_Map) -> bool {
 	// check all points along the x axis per y axis 'row'
 	for gy := min_grid[1]; gy <= max_grid[1]; gy += 1 {
 		for gx := min_grid[0]; gx <= max_grid[0]; gx += 1 {
+
+            // bounds check
+			if gx < 0 || gx >= game_map.width || gy < 0 || gy >= game_map.height do continue
+
 			idx := (gy * game_map.width) + gx
 			tile := Tile_Type(game_map.data[idx])
 			def := tile_defs[tile]