diff --git a/images/ubuntu/scripts/build/configure-environment-azure-arm.sh b/images/ubuntu/scripts/build/configure-environment-azure-arm.sh
index 5f8088ba0de6..c3eb78085f29 100644
--- a/images/ubuntu/scripts/build/configure-environment-azure-arm.sh
+++ b/images/ubuntu/scripts/build/configure-environment-azure-arm.sh
@@ -5,6 +5,6 @@
 ################################################################################
 
 # Change waagent entries to use /mnt for swapfile
-sed -i 's/ResourceDisk.Format=n/ResourceDisk.Format=y/g' /etc/waagent.conf
-sed -i 's/ResourceDisk.EnableSwap=n/ResourceDisk.EnableSwap=y/g' /etc/waagent.conf
-sed -i 's/ResourceDisk.SwapSizeMB=0/ResourceDisk.SwapSizeMB=4096/g' /etc/waagent.conf
+sed -i -e 's/ResourceDisk.Format=n/ResourceDisk.Format=y/g' \
+  -e 's/ResourceDisk.EnableSwap=n/ResourceDisk.EnableSwap=y/g' \
+  -e 's/ResourceDisk.SwapSizeMB=0/ResourceDisk.SwapSizeMB=4096/g' /etc/waagent.conf