diff --git a/src/modules/theme/theme.c b/src/modules/theme/theme.c
index 08b345fe7..2fc89549b 100644
--- a/src/modules/theme/theme.c
+++ b/src/modules/theme/theme.c
@@ -32,7 +32,7 @@ void ffPrintTheme(FFThemeOptions* options)
 
 void ffInitThemeOptions(FFThemeOptions* options)
 {
-    ffOptionInitModuleBaseInfo(&options->moduleInfo, FF_THEME_MODULE_NAME, ffParseThemeCommandOptions, ffParseThemeJsonObject, ffPrintTheme, NULL);
+    ffOptionInitModuleBaseInfo(&options->moduleInfo, FF_THEME_MODULE_NAME, ffParseThemeCommandOptions, ffParseThemeJsonObject, ffPrintTheme, ffGenerateThemeJson);
     ffOptionInitModuleArg(&options->moduleArgs);
 }
 
diff --git a/src/modules/theme/theme.h b/src/modules/theme/theme.h
index ef8f18a79..c0cee8584 100644
--- a/src/modules/theme/theme.h
+++ b/src/modules/theme/theme.h
@@ -9,3 +9,4 @@ void ffInitThemeOptions(FFThemeOptions* options);
 bool ffParseThemeCommandOptions(FFThemeOptions* options, const char* key, const char* value);
 void ffDestroyThemeOptions(FFThemeOptions* options);
 void ffParseThemeJsonObject(FFThemeOptions* options, yyjson_val* module);
+void ffGenerateThemeJson(FFThemeOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module);