diff --git a/MagickCore/fx.c b/MagickCore/fx.c
index c7c2222..ffc71f9 100644
--- a/MagickCore/fx.c
+++ b/MagickCore/fx.c
@@ -179,7 +179,7 @@
   fx_info->exception=AcquireExceptionInfo();
   fx_info->images=image;
   fx_info->colors=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
-    RelinquishMagickMemory);
+    RelinquishAlignedMemory);
   fx_info->symbols=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
     RelinquishMagickMemory);
   fx_info->view=(CacheView **) AcquireQuantumMemory(GetImageListLength(