diff --git a/install/alpine-step-ca-install.sh b/install/alpine-step-ca-install.sh
index 5401e39e..a0a14166 100644
--- a/install/alpine-step-ca-install.sh
+++ b/install/alpine-step-ca-install.sh
@@ -73,8 +73,8 @@ $STD rc-service step-ca start
 timeout_counter=0
 while ! nc -z localhost 443; do
   sleep 0.5
-  
-  ((timeout_counter=counter+1))
+
+  ((timeout_counter=timeout_counter+1))
   if (( timeout_counter > 30 )); then
     msg_error "Failed to start Step-CA"
     exit