diff --git a/MagickWand/mogrify.c b/MagickWand/mogrify.c
index d6d5302..104b299 100644
--- a/MagickWand/mogrify.c
+++ b/MagickWand/mogrify.c
@@ -1197,14 +1197,11 @@
             KernelInfo
               *kernel_info;
 
-            register ssize_t
-              j;
-
             (void) SyncImageSettings(mogrify_info,*image);
             kernel_info=AcquireKernelInfo(argv[i+1]);
             if (kernel_info == (KernelInfo *) NULL)
               break;
-            mogrify_image=FilterImage(*image,kernel_info,exception);
+            mogrify_image=ConvolveImage(*image,kernel_info,exception);
             kernel_info=DestroyKernelInfo(kernel_info);
             break;
           }