diff --git a/cmd/main.go b/cmd/main.go
index a4a8a72bdce..f731f43b383 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -78,6 +78,7 @@ import (
 	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
 
 	"github.com/argoproj-labs/gitops-operator/argocd-operator/pkg/tlsprofile"
+	"github.com/samber/lo"
 	//+kubebuilder:scaffold:imports
 )
 
@@ -382,6 +383,9 @@ func main() {
 			DisableClusterTLSProfile: disableClusterTLSProfile,
 			MinVersion:               profile.MinTLSVersion,
 			Ciphers:                  profile.Ciphers,
+			CurvePreferences: lo.Map(profile.Groups, func(group configv1.TLSGroup, _ int) string {
+				return string(group)
+			}),
 		},
 	}).SetupWithManager(mgr); err != nil {
 		setupLog.Error(err, "unable to create controller", "controller", "Argo CD")
diff --git a/go.mod b/go.mod
index e04582f5b0b..d0036fc47c2 100644
--- a/go.mod
+++ b/go.mod
@@ -25,6 +25,7 @@ require (
 	github.com/openshift/controller-runtime-common v0.0.0-20260428152732-64ee174f5e2e
 	github.com/operator-framework/api v0.17.5
 	github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring v0.74.0
+	github.com/samber/lo v1.53.0
 	github.com/stretchr/testify v1.11.1
 	go.uber.org/zap v1.28.0
 	golang.org/x/crypto v0.56.0
diff --git a/go.sum b/go.sum
index 32ec726a6df..fe682fee0ae 100644
--- a/go.sum
+++ b/go.sum
@@ -421,6 +421,8 @@ github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0t
 github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/samber/lo v1.53.0 h1:t975lj2py4kJPQ6haz1QMgtId2gtmfktACxIXArw3HM=
+github.com/samber/lo v1.53.0/go.mod h1:4+MXEGsJzbKGaUEQFKBq2xtfuznW9oz/WrgyzMzRoM0=
 github.com/sergi/go-diff v1.4.0 h1:n/SP9D5ad1fORl+llWyN+D6qoUETXNZARKjyY2/KVCw=
 github.com/sergi/go-diff v1.4.0/go.mod h1:A0bzQcvG0E7Rwjx0REVgAGH58e96+X0MeOfepqsbeW4=
 github.com/sethvargo/go-password v0.4.0 h1:eSidVKQw5C7CmTDAtH3RipBTSjdU1ZRxQaynD2GWLVU=