1 files changed, 2 insertions, 2 deletions
diff --git a/action.h b/action.h
index a431122..c6a73c0 100644
--- a/action.h
+++ b/action.h
@@ -64,11 +64,11 @@ typedef struct _ActionInfo
     struct _ActionInfo *next;
 } ActionInfo;
 
-extern int HandleActionDef(ExprDef * /* def */ ,
+extern int HandleActionDef(const ExprDef * /* def */ ,
                            XkbDescPtr /* xkb */ ,
                            XkbAnyAction * /* action */ ,
                            unsigned /* mergeMode */ ,
-                           ActionInfo * /* info */
+                           const ActionInfo * /* info */
     );
 
 extern int SetActionField(XkbDescPtr /* xkb */ ,