diff --git a/cpp/cmd/5ttedit.cpp b/cpp/cmd/5ttedit.cpp
index 2292280fb7..ffe233bfd3 100644
--- a/cpp/cmd/5ttedit.cpp
+++ b/cpp/cmd/5ttedit.cpp
@@ -87,11 +87,11 @@ class Modifier {
            " but there may have been an error in generation of input images)");                    //
     }
     if (inadequate_volume_count > 0) {
-      WARN("A total of " + str(excess_volume_count) + " voxels were outside the brain in the input image," + //
-           " the user provided non-zero partial volume fractions in at least one input volume," +            //
-           " but the sum of partial volume fractions across user-provided images was less than one" +        //
-           " (these were auto-scaled to sum to one," +                                                       //
-           " but there may have been an error in generation of input images)");                              //
+      WARN("A total of " + str(inadequate_volume_count) + " voxels were outside the brain in the input image," + //
+           " the user provided non-zero partial volume fractions in at least one input volume," +                //
+           " but the sum of partial volume fractions across user-provided images was less than one" +            //
+           " (these were auto-scaled to sum to one," +                                                           //
+           " but there may have been an error in generation of input images)");                                  //
     }
   }