diff --git a/manifest/models.yaml b/manifest/models.yaml
index b5c7d7189..23efb0df5 100644
--- a/manifest/models.yaml
+++ b/manifest/models.yaml
@@ -69,6 +69,10 @@
                         slug: pbe
                         reference:
                           doi: https://doi.org/10.1103/PhysRevLett.77.3865
+                      - name: perdew-burke-ernzerhof-solid
+                        slug: pbesol
+                        reference:
+                          doi: https://doi.org/10.1103/PhysRevLett.100.136406
 #                  modifiers:
 #                    type: array
 #                    items:
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": {
diff --git a/schema/model/mixins/dft/enum_options.yml b/schema/model/mixins/dft/enum_options.yml
index 56d664fd7..943da2c94 100644
--- a/schema/model/mixins/dft/enum_options.yml
+++ b/schema/model/mixins/dft/enum_options.yml
@@ -3,6 +3,7 @@ lda:
   - pz
 gga:
   - pbe
+  - pbesol
 mgga:
   - scan
 hybrid: