diff --git a/examples/template/otterdog-defaults.libsonnet b/examples/template/otterdog-defaults.libsonnet
index 486353c9..e4ce2376 100644
--- a/examples/template/otterdog-defaults.libsonnet
+++ b/examples/template/otterdog-defaults.libsonnet
@@ -271,6 +271,7 @@ local newEnvironment(name) = {
   name: name,
   wait_timer: 0,
   reviewers: [],
+  prevent_self_review: false,
   # Can be one of: all, protected_branches, branch_policies
   deployment_branch_policy: "all",
   branch_policies: [],
diff --git a/otterdog/models/environment.py b/otterdog/models/environment.py
index c4361898..3bcc1af1 100644
--- a/otterdog/models/environment.py
+++ b/otterdog/models/environment.py
@@ -38,6 +38,7 @@ class Environment(ModelObject):
     name: str = dataclasses.field(metadata={"key": True})
     wait_timer: int
     reviewers: list[str]
+    prevent_self_review: bool
     deployment_branch_policy: str
     branch_policies: list[str]
 
diff --git a/otterdog/resources/schemas/environment.json b/otterdog/resources/schemas/environment.json
index ba1bea7a..fdecdb29 100644
--- a/otterdog/resources/schemas/environment.json
+++ b/otterdog/resources/schemas/environment.json
@@ -9,6 +9,7 @@
       "type": "array",
       "items": { "type": "string" }
     },
+    "prevent_self_review": { "type": "boolean" },
     "deployment_branch_policy": { "type": "string" },
     "branch_policies": {
       "type": "array",
diff --git a/tests/models/resources/github-environment.json b/tests/models/resources/github-environment.json
index 15d74d2f..bfb49dbd 100644
--- a/tests/models/resources/github-environment.json
+++ b/tests/models/resources/github-environment.json
@@ -7,6 +7,7 @@
   "created_at": "2023-06-13T20:40:38Z",
   "updated_at": "2023-06-21T11:58:31Z",
   "can_admins_bypass": true,
+  "prevent_self_review": true,
   "protection_rules": [
     {
       "id": 9174563,
diff --git a/tests/models/resources/otterdog-environment.json b/tests/models/resources/otterdog-environment.json
index 0a45b052..82965016 100644
--- a/tests/models/resources/otterdog-environment.json
+++ b/tests/models/resources/otterdog-environment.json
@@ -5,6 +5,7 @@
     "@netomi",
     "@OtterdogTest/eclipsefdn-security"
   ],
+  "prevent_self_review": true,
   "deployment_branch_policy": "selected",
   "branch_policies": [
     "main",
diff --git a/tests/models/test_environment.py b/tests/models/test_environment.py
index e027dcec..9dce0db3 100644
--- a/tests/models/test_environment.py
+++ b/tests/models/test_environment.py
@@ -41,6 +41,7 @@ def test_load_from_model(self):
         assert env.name == "linux"
         assert env.wait_timer == 15
         assert env.reviewers == ["@netomi", "@OtterdogTest/eclipsefdn-security"]
+        assert env.prevent_self_review is True
         assert env.deployment_branch_policy == "selected"
         assert env.branch_policies == ["main", "develop/*"]
 
@@ -52,6 +53,7 @@ def test_load_from_provider(self):
         assert env.name == "linux"
         assert env.wait_timer == 15
         assert env.reviewers == ["@netomi", "@OtterdogTest/eclipsefdn-security"]
+        assert env.prevent_self_review is True
         assert env.deployment_branch_policy == "selected"
         assert env.branch_policies == ["main", "develop/*"]
 
@@ -60,8 +62,9 @@ async def test_to_provider(self):
 
         provider_data = await env.to_provider_data(self.org_id, self.provider)
 
-        assert len(provider_data) == 5
+        assert len(provider_data) == 6
         assert provider_data["wait_timer"] == 15
+        assert provider_data["prevent_self_review"] is True
 
         assert query_json("reviewers[0].id", provider_data) == "id_netomi"
         assert query_json("reviewers[1].id", provider_data) == "id_OtterdogTest/eclipsefdn-security"