diff --git a/images/linux/scripts/installers/azpowershell.sh b/images/linux/scripts/installers/azpowershell.sh
index 505ad5159..6e2bf6152 100644
--- a/images/linux/scripts/installers/azpowershell.sh
+++ b/images/linux/scripts/installers/azpowershell.sh
@@ -6,6 +6,7 @@
 
 # Source the helpers for use with the script
 source $HELPER_SCRIPTS/document.sh
+source $HELPER_SCRIPTS/os.sh
 
 # Install Azure CLI (instructions taken from https://docs.microsoft.com/en-us/cli/azure/install-azure-cli)
 if isUbuntu20 ; then
diff --git a/images/linux/scripts/installers/java-tools.sh b/images/linux/scripts/installers/java-tools.sh
index 7d27d255d..3e5195322 100644
--- a/images/linux/scripts/installers/java-tools.sh
+++ b/images/linux/scripts/installers/java-tools.sh
@@ -6,6 +6,7 @@
 
 # Source the helpers for use with the script
 source $HELPER_SCRIPTS/document.sh
+source $HELPER_SCRIPTS/os.sh
 
 set -e