diff --git a/keda/templates/manager/service.yaml b/keda/templates/manager/service.yaml
index 12c4e75f..3d111af0 100644
--- a/keda/templates/manager/service.yaml
+++ b/keda/templates/manager/service.yaml
@@ -33,6 +33,9 @@ spec:
   - name: metrics
     port: {{ .Values.prometheus.operator.port }}
     targetPort: {{ .Values.prometheus.operator.port }}
+    {{- with .Values.prometheus.operator.appProtocol }}
+    appProtocol: {{ . }}
+    {{- end }}
   {{- end }}
   {{- if .Values.profiling.operator.enabled }}
   - name: profiling
diff --git a/keda/templates/metrics-server/service.yaml b/keda/templates/metrics-server/service.yaml
index 750b682e..18b8a47d 100644
--- a/keda/templates/metrics-server/service.yaml
+++ b/keda/templates/metrics-server/service.yaml
@@ -37,6 +37,9 @@ spec:
     port: {{ .Values.prometheus.metricServer.port }}
     targetPort: {{ .Values.prometheus.metricServer.port }}
     protocol: TCP
+    {{- with .Values.prometheus.metricServer.appProtocol }}
+    appProtocol: {{ . }}
+    {{- end }}
   {{- if .Values.profiling.metricsServer.enabled }}
   - name: profiling
     port: {{ .Values.profiling.metricsServer.port }}
diff --git a/keda/templates/webhooks/service.yaml b/keda/templates/webhooks/service.yaml
index 8c40bc34..22482542 100644
--- a/keda/templates/webhooks/service.yaml
+++ b/keda/templates/webhooks/service.yaml
@@ -36,6 +36,9 @@ spec:
   - name: {{ .Values.prometheus.webhooks.serviceMonitor.port }}
     port: {{ .Values.prometheus.webhooks.port }}
     targetPort: {{ .Values.prometheus.webhooks.port }}
+        {{- with .Values.prometheus.webhooks.appProtocol }}
+    appProtocol: {{ . }}
+    {{- end }}
   {{- end }}
   {{- if .Values.profiling.webhooks.enabled }}
   - name: profiling
diff --git a/keda/values.yaml b/keda/values.yaml
index c9e7b45c..47f2d890 100644
--- a/keda/values.yaml
+++ b/keda/values.yaml
@@ -601,6 +601,8 @@ prometheus:
     port: 8080
     # -- HTTP port name for exposing metrics server prometheus metrics
     portName: metrics
+    # -- App Protocol for service when scraping metrics endpoint
+    # appProtocol: http
     serviceMonitor:
       # -- Enables ServiceMonitor creation for the Prometheus Operator
       enabled: false
@@ -654,6 +656,8 @@ prometheus:
     enabled: false
     # -- Port used for exposing KEDA Operator prometheus metrics
     port: 8080
+    # -- App Protocol for service when scraping metrics endpoint
+    # appProtocol: http
     serviceMonitor:
       # -- Enables ServiceMonitor creation for the Prometheus Operator
       enabled: false
@@ -725,6 +729,8 @@ prometheus:
     enabled: false
     # -- Port used for exposing KEDA admission webhooks prometheus metrics
     port: 8080
+    # -- App Protocol for service when scraping metrics endpoint
+    # appProtocol: http
     serviceMonitor:
       # -- Enables ServiceMonitor creation for the Prometheus webhooks
       enabled: false