diff --git a/config/ecs/ecs-amp-prometheus.yaml b/config/ecs/ecs-amp-prometheus.yaml
index 87667f057..2a15bca1a 100644
--- a/config/ecs/ecs-amp-prometheus.yaml
+++ b/config/ecs/ecs-amp-prometheus.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: $AWS_REGION
+    region: ${AWS_REGION}
 
 receivers:
   awsecscontainermetrics:
@@ -41,7 +41,7 @@ processors:
 
 exporters:
   prometheusremotewrite:
-    endpoint: $AWS_PROMETHEUS_ENDPOINT
+    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion:
diff --git a/config/ecs/ecs-amp-xray-prometheus.yaml b/config/ecs/ecs-amp-xray-prometheus.yaml
index 3b38b2c9c..e3ac07ad0 100644
--- a/config/ecs/ecs-amp-xray-prometheus.yaml
+++ b/config/ecs/ecs-amp-xray-prometheus.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: $AWS_REGION
+    region: ${AWS_REGION}
 
 receivers:
   otlp:
@@ -51,7 +51,7 @@ processors:
 exporters:
   awsxray:
   prometheusremotewrite:
-    endpoint: $AWS_PROMETHEUS_ENDPOINT
+    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion:
diff --git a/config/ecs/ecs-amp-xray.yaml b/config/ecs/ecs-amp-xray.yaml
index d0f2f15ca..7020c3aa3 100644
--- a/config/ecs/ecs-amp-xray.yaml
+++ b/config/ecs/ecs-amp-xray.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: $AWS_REGION
+    region: ${AWS_REGION}
 
 receivers:
   otlp:
@@ -42,7 +42,7 @@ processors:
 exporters:
   awsxray:
   prometheusremotewrite:
-    endpoint: $AWS_PROMETHEUS_ENDPOINT
+    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion:
diff --git a/config/ecs/ecs-amp.yaml b/config/ecs/ecs-amp.yaml
index 743e8a9cc..806a0891e 100644
--- a/config/ecs/ecs-amp.yaml
+++ b/config/ecs/ecs-amp.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: $AWS_REGION
+    region: ${AWS_REGION}
 
 receivers:
   otlp:
@@ -38,7 +38,7 @@ processors:
 
 exporters:
   prometheusremotewrite:
-    endpoint: $AWS_PROMETHEUS_ENDPOINT
+    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion: