diff --git a/schema/model/mixins/dft/enum_options.json b/schema/model/mixins/dft/enum_options.json
index 7f85e13a3..1057440f0 100644
--- a/schema/model/mixins/dft/enum_options.json
+++ b/schema/model/mixins/dft/enum_options.json
@@ -7,7 +7,8 @@
     },
     "gga": {
         "enum": [
-            "pbe"
+            "pbe",
+            "pbesol"
         ]
     },
     "mgga": {