diff --git a/src/bin/build-keycloak-theme/generateFtl/index.ts b/src/bin/build-keycloak-theme/generateFtl/index.ts
index e4052bb6..c6d4854c 100644
--- a/src/bin/build-keycloak-theme/generateFtl/index.ts
+++ b/src/bin/build-keycloak-theme/generateFtl/index.ts
@@ -125,14 +125,14 @@ export function generateFtlFilesCodeFactory(
                 '        Object,',
                 '        "deepAssign",',
                 '        {',
-                '            "value": function (target, source) {',
+                '            "value": function callee(target, source) {',
                 '                Object.keys(source).forEach(function (key) {',
                 '                    var value = source[key];',
                 '                    if (value instanceof Object) {',
                 '                        if (!(target[key] instanceof Object)) {',
                 '                            target[key] = {};',
                 '                        }',
-                '                        deepAssign(target[key], value);',
+                '                        callee(target[key], value);',
                 '                    } else {',
                 '                        target[key] = value;',
                 '                    }',