diff --git a/repo-scripts/size-analysis/bundle-definitions/database.json b/repo-scripts/size-analysis/bundle-definitions/database.json
index 2014cac4131..b4366ec3dff 100644
--- a/repo-scripts/size-analysis/bundle-definitions/database.json
+++ b/repo-scripts/size-analysis/bundle-definitions/database.json
@@ -189,6 +189,38 @@
       }
     ]
   },
+  {
+    "name": "Listen for value events + Detach listeners",
+    "dependencies": [
+      {
+        "packageName": "firebase",
+        "versionOrTag": "latest",
+        "imports": [
+          {
+            "path": "app",
+            "imports": [
+              "initializeApp"
+            ]
+          }
+        ]
+      },
+      {
+        "packageName": "firebase",
+        "versionOrTag": "latest",
+        "imports": [
+          {
+            "path": "database",
+            "imports": [
+              "getDatabase",
+              "ref",
+              "onValue",
+              "off"
+            ]
+          }
+        ]
+      }
+    ]
+  },
   {
     "name": "Sort data",
     "dependencies": [