diff --git a/cpp/ql/lib/ext/empty.model.yml b/cpp/ql/lib/ext/empty.model.yml
index 6f160b62d7a..e5202b5ad73 100644
--- a/cpp/ql/lib/ext/empty.model.yml
+++ b/cpp/ql/lib/ext/empty.model.yml
@@ -9,6 +9,14 @@ extensions:
       pack: codeql/cpp-all
       extensible: sinkModel
     data: []
+  - addsTo:
+      pack: codeql/cpp-all
+      extensible: barrierModel
+    data: []
+  - addsTo:
+      pack: codeql/cpp-all
+      extensible: barrierGuardModel
+    data: []
   - addsTo:
       pack: codeql/cpp-all
       extensible: summaryModel
diff --git a/csharp/ql/lib/ext/empty.model.yml b/csharp/ql/lib/ext/empty.model.yml
index 6b38b783cbe..09d848ea57d 100644
--- a/csharp/ql/lib/ext/empty.model.yml
+++ b/csharp/ql/lib/ext/empty.model.yml
@@ -11,6 +11,16 @@ extensions:
       extensible: sinkModel
     data: []
 
+  - addsTo:
+      pack: codeql/csharp-all
+      extensible: barrierModel
+    data: []
+
+  - addsTo:
+      pack: codeql/csharp-all
+      extensible: barrierGuardModel
+    data: []
+
   - addsTo:
       pack: codeql/csharp-all
       extensible: summaryModel
diff --git a/go/ql/lib/ext/empty.model.yml b/go/ql/lib/ext/empty.model.yml
index 8d661a9f1db..1709a6098eb 100644
--- a/go/ql/lib/ext/empty.model.yml
+++ b/go/ql/lib/ext/empty.model.yml
@@ -9,6 +9,14 @@ extensions:
       pack: codeql/go-all
       extensible: sinkModel
     data: []
+  - addsTo:
+      pack: codeql/go-all
+      extensible: barrierModel
+    data: []
+  - addsTo:
+      pack: codeql/go-all
+      extensible: barrierGuardModel
+    data: []
   - addsTo:
       pack: codeql/go-all
       extensible: summaryModel