diff --git a/src/apps/debugger/Debugger.rdef b/src/apps/debugger/Debugger.rdef
index f5360b5638..a141067703 100644
--- a/src/apps/debugger/Debugger.rdef
+++ b/src/apps/debugger/Debugger.rdef
@@ -3,6 +3,10 @@ resource(1, "BEOS:APP_SIG") #'MIMS' "application/x-vnd.Haiku-Debugger";
 
 resource app_name_catalog_entry "x-vnd.Haiku-Debugger:System name:Debugger";
 
+resource file_types message {
+  "types" = "application/x-vnd.haiku-core-file"
+};
+
 resource app_version {
 	major  = 1,
 	middle = 0,