diff --git a/config/example.json b/config/example.json
index 5ed49aa7da..e5ac3aaf7b 100644
--- a/config/example.json
+++ b/config/example.json
@@ -31,6 +31,7 @@
       "*"
     ],
     "jscomp_off": [
+      "unnecessaryCasts",
       "useOfGoogBase",
       "lintChecks",
       "analyzerChecks",
diff --git a/config/examples-all.json b/config/examples-all.json
index fb3c2d2874..40d452b4b3 100644
--- a/config/examples-all.json
+++ b/config/examples-all.json
@@ -32,6 +32,7 @@
       "*"
     ],
     "jscomp_off": [
+      "unnecessaryCasts",
       "useOfGoogBase",
       "lintChecks",
       "analyzerChecks"
diff --git a/config/ol.json b/config/ol.json
index 1a4071d6a0..37039fac71 100644
--- a/config/ol.json
+++ b/config/ol.json
@@ -21,6 +21,7 @@
       "*"
     ],
     "jscomp_off": [
+      "unnecessaryCasts",
       "useOfGoogBase",
       "lintChecks",
       "analyzerChecks"