diff --git a/src/layer/tile/GridLayer.js b/src/layer/tile/GridLayer.js
index c49e4771..f3f458a0 100644
--- a/src/layer/tile/GridLayer.js
+++ b/src/layer/tile/GridLayer.js
@@ -639,7 +639,7 @@ L.GridLayer = L.Layer.extend({
 		});
 
 		if (queue.length !== 0) {
-			// if its the first batch of tiles to load
+			// if it's the first batch of tiles to load
 			if (!this._loading) {
 				this._loading = true;
 				// @event loading: Event