diff --git a/dev-tcltk/tdom/files/tdom-0.9.2-nothreads.patch b/dev-tcltk/tdom/files/tdom-0.9.2-nothreads.patch
index 1170eb16bb5b7..a0a691fdce60d 100644
--- a/dev-tcltk/tdom/files/tdom-0.9.2-nothreads.patch
+++ b/dev-tcltk/tdom/files/tdom-0.9.2-nothreads.patch
@@ -16,7 +16,7 @@
  #else
  SchemaData *
 -tdomGetSchemadata (void) 
-+tdomGetSchemadata (Tcl_Interp *) 
++tdomGetSchemadata (Tcl_Interp *interp) 
  {
      return GETASI;
  }