diff --git a/pkg/utils/cel/cel.go b/pkg/utils/cel/cel.go
index 9efd0e901b1b..d0f21f251fd2 100644
--- a/pkg/utils/cel/cel.go
+++ b/pkg/utils/cel/cel.go
@@ -27,8 +27,7 @@ func NewCompiler(
 	matchConditions []admissionregistrationv1.MatchCondition,
 	variables []admissionregistrationv1beta1.Variable,
 ) (*Compiler, error) {
-	env := environment.MustBaseEnvSet(environment.DefaultCompatibilityVersion(), false)
-	env.Extend(environment.VersionedOptions{
+	env, err := environment.MustBaseEnvSet(environment.DefaultCompatibilityVersion(), false).Extend(environment.VersionedOptions{
 		IntroducedVersion: version.MajorMinor(1, 0),
 		EnvOptions: []celgo.EnvOption{
 			library.JsonParseLib(),