diff --git a/rotation.cpp b/rotation.cpp
index 8c97fc1..6682605 100644
--- a/rotation.cpp
+++ b/rotation.cpp
@@ -726,11 +726,6 @@ void rotate_pixel(TiledImage<W, H> const& src,
 
   pvalue_t const* src_index_1 = src.access_pixel(src_x, src_y);
   pvalue_t const* src_index_3 = src_index_1 + (W + 1) * PIXEL_SIZE;
-  pvalue_t const* src_index_4 = src_index_3 + PIXEL_SIZE;
-
-  // FIXME: deal with image border
-  if (!src_index_4)
-    return;
 
   unsigned int x_delta = src_rotated_point.x & 0x07;;
   unsigned int y_delta = src_rotated_point.y & 0x07;
@@ -740,6 +735,7 @@ void rotate_pixel(TiledImage<W, H> const& src,
 #ifndef SIMD
 
   pvalue_t const* src_index_2 = src_index_1 + PIXEL_SIZE;
+  pvalue_t const* src_index_4 = src_index_3 + PIXEL_SIZE;
 
   rot_tile[0] = ((src_index_1[0] * inv_x + src_index_2[0] * x_delta) * inv_y
               + (src_index_3[0] * inv_x + src_index_4[0] * x_delta) * y_delta) >> 6;