diff --git a/MagickCore/effect.c b/MagickCore/effect.c
index c406f3d..6ddbf0c 100644
--- a/MagickCore/effect.c
+++ b/MagickCore/effect.c
@@ -1998,12 +1998,12 @@
             (void) CopyMagickString(factor,"impulse",MaxTextExtent);
             break;
           }
-          case 4:
+          case 5:
           {
             (void) CopyMagickString(factor,"laplacian",MaxTextExtent);
             break;
           }
-          case 5:
+          case 6:
           {
             (void) CopyMagickString(factor,"Poisson",MaxTextExtent);
             break;