diff --git a/cluster/aws/config-default.sh b/cluster/aws/config-default.sh
index 320185a2de3..6aa1a23b97f 100644
--- a/cluster/aws/config-default.sh
+++ b/cluster/aws/config-default.sh
@@ -68,8 +68,6 @@ CLUSTER_ID=${INSTANCE_PREFIX}
 VPC_NAME=${VPC_NAME:-kubernetes-vpc}
 AWS_SSH_KEY=${AWS_SSH_KEY:-$HOME/.ssh/kube_aws_rsa}
 CONFIG_CONTEXT="${KUBE_CONFIG_CONTEXT:-aws_${INSTANCE_PREFIX}}"
-IAM_PROFILE_MASTER="kubernetes-master"
-IAM_PROFILE_NODE="kubernetes-minion"
 
 LOG="/dev/null"
 
diff --git a/cluster/aws/config-test.sh b/cluster/aws/config-test.sh
index 6cc07cef11c..4ac6492d540 100755
--- a/cluster/aws/config-test.sh
+++ b/cluster/aws/config-test.sh
@@ -56,8 +56,6 @@ CONFIG_CONTEXT="${KUBE_CONFIG_CONTEXT:-aws_${INSTANCE_PREFIX}}"
 CLUSTER_ID=${INSTANCE_PREFIX}
 VPC_NAME=${VPC_NAME:-kubernetes-vpc}
 AWS_SSH_KEY=${AWS_SSH_KEY:-$HOME/.ssh/kube_aws_rsa}
-IAM_PROFILE_MASTER="kubernetes-master-${INSTANCE_PREFIX}"
-IAM_PROFILE_NODE="kubernetes-minion-${INSTANCE_PREFIX}"
 
 LOG="/dev/null"
 
diff --git a/cluster/aws/util.sh b/cluster/aws/util.sh
index 80cc1a54653..3dcfab73637 100755
--- a/cluster/aws/util.sh
+++ b/cluster/aws/util.sh
@@ -120,6 +120,9 @@ fi
 MASTER_SG_NAME="kubernetes-master-${CLUSTER_ID}"
 NODE_SG_NAME="kubernetes-minion-${CLUSTER_ID}"
 
+IAM_PROFILE_MASTER="kubernetes-master-${CLUSTER_ID}-${VPC_NAME}"
+IAM_PROFILE_NODE="kubernetes-minion-${CLUSTER_ID}-${VPC_NAME}"
+
 # Be sure to map all the ephemeral drives.  We can specify more than we actually have.
 # TODO: Actually mount the correct number (especially if we have more), though this is non-trivial, and
 #  only affects the big storage instance types, which aren't a typical use case right now.