diff --git a/.changelog/3184.txt b/.changelog/3184.txt
new file mode 100644
index 0000000000..4e1abf0f35
--- /dev/null
+++ b/.changelog/3184.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+consul-telemetry-collector: fix args to consul-dataplane when global.acls.manageSystemACLs
+```
\ No newline at end of file
diff --git a/charts/consul/templates/telemetry-collector-deployment.yaml b/charts/consul/templates/telemetry-collector-deployment.yaml
index 396cc147ab..780884f999 100644
--- a/charts/consul/templates/telemetry-collector-deployment.yaml
+++ b/charts/consul/templates/telemetry-collector-deployment.yaml
@@ -287,13 +287,12 @@ spec:
           - -login-auth-method={{ template "consul.fullname" . }}-k8s-auth-method
           {{- if .Values.global.enableConsulNamespaces }}
           {{- if .Values.syncCatalog.consulNamespaces.mirroringK8S }}
-          - -login-namespace="default"
+          - -login-namespace=default
           {{- else }}
           - -login-namespace={{ .Values.syncCatalog.consulNamespaces.consulDestinationNamespace }}
           {{- end }}
           {{- end }}
           {{- if .Values.global.adminPartitions.enabled }}
-          - foo
           - -login-partition={{ .Values.global.adminPartitions.name }}
           {{- end }}
           {{- end }}
diff --git a/charts/consul/templates/telemetry-collector-v2-deployment.yaml b/charts/consul/templates/telemetry-collector-v2-deployment.yaml
index a88277f3b2..86b4edf159 100644
--- a/charts/consul/templates/telemetry-collector-v2-deployment.yaml
+++ b/charts/consul/templates/telemetry-collector-v2-deployment.yaml
@@ -275,13 +275,12 @@ spec:
           - -login-auth-method={{ template "consul.fullname" . }}-k8s-auth-method
           {{- if .Values.global.enableConsulNamespaces }}
           {{- if .Values.syncCatalog.consulNamespaces.mirroringK8S }}
-          - -login-namespace="default"
+          - -login-namespace=default
           {{- else }}
           - -login-namespace={{ .Values.syncCatalog.consulNamespaces.consulDestinationNamespace }}
           {{- end }}
           {{- end }}
           {{- if .Values.global.adminPartitions.enabled }}
-          - foo
           - -login-partition={{ .Values.global.adminPartitions.name }}
           {{- end }}
           {{- end }}
diff --git a/charts/consul/test/unit/telemetry-collector-deployment.bats b/charts/consul/test/unit/telemetry-collector-deployment.bats
index 432200541b..60b87961b5 100755
--- a/charts/consul/test/unit/telemetry-collector-deployment.bats
+++ b/charts/consul/test/unit/telemetry-collector-deployment.bats
@@ -1212,4 +1212,40 @@ MIICFjCCAZsCCQCdwLtdjbzlYzAKBggqhkjOPQQDAjB0MQswCQYDVQQGEwJDQTEL' \
       --set 'ui.enabled=false' \
       --set 'global.experiments[0]=resource-apis' \
       .
-}
\ No newline at end of file
+}
+
+#--------------------------------------------------------------------
+# Namespaces
+
+@test "telemetryCollector/Deployment: namespace flags when mirroringK8S" {
+  cd `chart_dir`
+  local object=$(helm template \
+      -s templates/telemetry-collector-deployment.yaml  \
+      --set 'telemetryCollector.enabled=true' \
+      --set 'telemetryCollector.image=bar' \
+      --set 'global.enableConsulNamespaces=true' \
+      --set 'global.acls.manageSystemACLs=true' \
+      --set 'syncCatalog.consulNamespaces.mirroringK8S=true' \
+      . | tee /dev/stderr |
+      yq -r '.spec.template.spec' | tee /dev/stderr)
+
+  local actual=$(echo $object | jq -r '.containers[1].args | any(contains("-login-namespace=default"))' | tee /dev/stderr)
+  [ "${actual}" = 'true' ]
+}
+
+@test "telemetryCollector/Deployment: namespace flags when syncCatalog" {
+  cd `chart_dir`
+  local object=$(helm template \
+      -s templates/telemetry-collector-deployment.yaml  \
+      --set 'telemetryCollector.enabled=true' \
+      --set 'telemetryCollector.image=bar' \
+      --set 'global.enableConsulNamespaces=true' \
+      --set 'global.acls.manageSystemACLs=true' \
+      --set 'syncCatalog.consulNamespaces.mirroringK8S=false' \
+      --set 'syncCatalog.consulNamespaces.consulDestinationNamespace=fakenamespace' \
+      . | tee /dev/stderr |
+      yq -r '.spec.template.spec.containers' | tee /dev/stderr)
+
+  local actual=$(echo $object | jq -r '.[1].args | any(contains("-login-namespace=fakenamespace"))' | tee /dev/stderr)
+  [ "${actual}" = 'true' ]
+}
diff --git a/charts/consul/test/unit/telemetry-collector-v2-deployment.bats b/charts/consul/test/unit/telemetry-collector-v2-deployment.bats
index f1d5de2597..a53882731c 100755
--- a/charts/consul/test/unit/telemetry-collector-v2-deployment.bats
+++ b/charts/consul/test/unit/telemetry-collector-v2-deployment.bats
@@ -1348,3 +1348,43 @@ MIICFjCCAZsCCQCdwLtdjbzlYzAKBggqhkjOPQQDAjB0MQswCQYDVQQGEwJDQTEL' \
       --set 'telemetryCollector.image=bar' \
       .
 }
+
+#--------------------------------------------------------------------
+# Namespaces
+
+@test "telemetryCollector/Deployment(V2): namespace flags when mirroringK8S" {
+  cd `chart_dir`
+  local object=$(helm template \
+      -s templates/telemetry-collector-v2-deployment.yaml   \
+      --set 'ui.enabled=false' \
+      --set 'global.experiments[0]=resource-apis' \
+      --set 'telemetryCollector.enabled=true' \
+      --set 'telemetryCollector.image=bar' \
+      --set 'global.enableConsulNamespaces=true' \
+      --set 'global.acls.manageSystemACLs=true' \
+      --set 'syncCatalog.consulNamespaces.mirroringK8S=true' \
+      . | tee /dev/stderr |
+      yq -r '.spec.template.spec' | tee /dev/stderr)
+
+  local actual=$(echo $object | jq -r '.containers[1].args | any(contains("-login-namespace=default"))' | tee /dev/stderr)
+  [ "${actual}" = 'true' ]
+}
+
+@test "telemetryCollector/Deployment(V2): namespace flags when syncCatalog" {
+  cd `chart_dir`
+  local object=$(helm template \
+      -s templates/telemetry-collector-v2-deployment.yaml   \
+      --set 'ui.enabled=false' \
+      --set 'global.experiments[0]=resource-apis' \
+      --set 'telemetryCollector.enabled=true' \
+      --set 'telemetryCollector.image=bar' \
+      --set 'global.enableConsulNamespaces=true' \
+      --set 'global.acls.manageSystemACLs=true' \
+      --set 'syncCatalog.consulNamespaces.mirroringK8S=false' \
+      --set 'syncCatalog.consulNamespaces.consulDestinationNamespace=fakenamespace' \
+      . | tee /dev/stderr |
+      yq -r '.spec.template.spec.containers' | tee /dev/stderr)
+
+  local actual=$(echo $object | jq -r '.[1].args | any(contains("-login-namespace=fakenamespace"))' | tee /dev/stderr)
+  [ "${actual}" = 'true' ]
+}