diff --git a/framework/Source/GPUImageCropFilter.m b/framework/Source/GPUImageCropFilter.m
index 22e33c17f..9dd42ebcb 100755
--- a/framework/Source/GPUImageCropFilter.m
+++ b/framework/Source/GPUImageCropFilter.m
@@ -138,17 +138,17 @@ - (void)calculateCropTextureCoordinates;
         }; break;
         case kGPUImageRotateLeft: // Fixed
         {
-            cropTextureCoordinates[0] = maxY; // 1,0
-            cropTextureCoordinates[1] = 1.0 - maxX;
+            cropTextureCoordinates[0] = (GLfloat)maxY; // 1,0
+            cropTextureCoordinates[1] = (GLfloat)minX;
 
-            cropTextureCoordinates[2] = maxY; // 1,1
-            cropTextureCoordinates[3] = 1.0 - minX;
+            cropTextureCoordinates[2] = (GLfloat)maxY; // 1,1
+            cropTextureCoordinates[3] = (GLfloat)maxX;
 
-            cropTextureCoordinates[4] = minY; // 0,0
-            cropTextureCoordinates[5] = 1.0 - maxX;
+            cropTextureCoordinates[4] = (GLfloat)minY; // 0,0
+            cropTextureCoordinates[5] = (GLfloat)minX;
 
-            cropTextureCoordinates[6] = minY; // 0,1
-            cropTextureCoordinates[7] = 1.0 - minX;
+            cropTextureCoordinates[6] = (GLfloat)minY; // 0,1
+            cropTextureCoordinates[7] = (GLfloat)maxX;
         }; break;
         case kGPUImageRotateRight: // Fixed
         {