diff --git a/wand/mogrify.c b/wand/mogrify.c
index 874f572..65bf7c7 100644
--- a/wand/mogrify.c
+++ b/wand/mogrify.c
@@ -4160,7 +4160,7 @@
               ThrowMogrifyException(OptionError,"MissingArgument",option);
             kernel_info=AcquireKernelInfo(argv[i]);
             if (kernel_info == (KernelInfo *) NULL)
-              ThrowConvertInvalidArgumentException(option,argv[i]);
+              ThrowMogrifyInvalidArgumentException(option,argv[i]);
             kernel_info=DestroyKernelInfo(kernel_info);
             break;
           }
@@ -4441,7 +4441,7 @@
               ThrowMogrifyException(OptionError,"MissingArgument",option);
             kernel_info=AcquireKernelInfo(argv[i]);
             if (kernel_info == (KernelInfo *) NULL)
-              ThrowConvertInvalidArgumentException(option,argv[i]);
+              ThrowMogrifyInvalidArgumentException(option,argv[i]);
             kernel_info=DestroyKernelInfo(kernel_info);
             break;
           }
@@ -4531,7 +4531,7 @@
               ThrowMogrifyException(OptionError,"MissingArgument",option);
             kernel_info=AcquireKernelInfo(argv[i]);
             if (kernel_info == (KernelInfo *) NULL)
-              ThrowConvertInvalidArgumentException(option,argv[i]);
+              ThrowMogrifyInvalidArgumentException(option,argv[i]);
             kernel_info=DestroyKernelInfo(kernel_info);
             break;
           }
@@ -5424,7 +5424,7 @@
               ThrowMogrifyException(OptionError,"MissingArgument",option);
             kernel_info=AcquireKernelInfo(argv[i]);
             if (kernel_info == (KernelInfo *) NULL)
-              ThrowConvertInvalidArgumentException(option,argv[i]);
+              ThrowMogrifyInvalidArgumentException(option,argv[i]);
             kernel_info=DestroyKernelInfo(kernel_info);
             break;
           }