diff --git a/deploy.sh b/deploy.sh
index 3d40ede..6e75242 100644
--- a/deploy.sh
+++ b/deploy.sh
@@ -182,7 +182,7 @@ ls /dev/serial/by-id/ 2>/dev/null | grep -i "zigbee" && TARGET_ZIGBEE_DEVICE=\$(
 
 TARGET_INTERFACE=\$(ip -4 route show default | awk '{print \$5}' | head -n1)
 
-if ls -l /sys/class/tpm/tpm0/;
+if ls -l /sys/class/tpm/tpm0/; then
   TARGET_TPM="true"
   TARGET_TPM_VERSION=\$(cat /sys/class/tpm/tpm0/tpm_version_major)
 else