diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
index 1ebe75b..c0142a2 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
@@ -39,10 +39,10 @@ public class CropCircleTransformation implements Transformation<Bitmap> {
         Bitmap source = resource.get();
         int size = Math.min(source.getWidth(), source.getHeight());
 
-        int x = (source.getWidth() - size) / 2;
-        int y = (source.getHeight() - size) / 2;
+        int width = (source.getWidth() - size) / 2;
+        int height = (source.getHeight() - size) / 2;
 
-        Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
+        Bitmap squaredBitmap = Bitmap.createBitmap(source, width, height, size, size);
         if (squaredBitmap != source) {
             source.recycle();
         }
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
index e994ce9..22060f9 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
@@ -44,10 +44,10 @@ public class CropSquareTransformation implements Transformation<Bitmap> {
         Bitmap source = resource.get();
         int size = Math.min(source.getWidth(), source.getHeight());
 
-        int x = (source.getWidth() - size) / 2;
-        int y = (source.getHeight() - size) / 2;
+        int width = (source.getWidth() - size) / 2;
+        int height = (source.getHeight() - size) / 2;
 
-        Bitmap bitmap = Bitmap.createBitmap(source, x, y, size, size);
+        Bitmap bitmap = Bitmap.createBitmap(source, width, height, size, size);
         if (bitmap != source) {
             source.recycle();
         }
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
index fc305e6..0bda472 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
@@ -42,7 +42,7 @@ public class GrayscaleTransformation implements Transformation<Bitmap> {
         int width = source.getWidth();
         int height = source.getHeight();
 
-        Bitmap bitmap = Bitmap.createBitmap(outWidth, outHeight, Bitmap.Config.ARGB_8888);
+        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
 
         Canvas canvas = new Canvas(bitmap);
         ColorMatrix saturation = new ColorMatrix();