diff --git a/resources/scripts/modes.ts b/resources/scripts/modes.ts
index 6606fe4dc9..e6f66423e2 100644
--- a/resources/scripts/modes.ts
+++ b/resources/scripts/modes.ts
@@ -43,9 +43,9 @@ const modes: Mode[] = [
     {
         name: 'JSON',
         mime: 'application/json',
-        mimes: ['application/json', 'application/x-json'],
+        mimes: ['application/json', 'application/x-json', 'application/json5' ],
         mode: 'javascript',
-        ext: ['json', 'map'],
+        ext: ['json', 'map', 'json5', 'jsonc' ],
         alias: ['json5'],
     },
     { name: 'Lua', mime: 'text/x-lua', mode: 'lua', ext: ['lua'] },