diff --git a/shard.yml b/shard.yml
index 2f88542..0c1b94e 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,6 @@
 name: pinger
-version: 1.1.0
+version: 1.1.1
+crystal: ">= 0.36.1"
 
 authors:
   - Caspian Baska <caspianbaska@gmail.com>
diff --git a/src/pinger.cr b/src/pinger.cr
index 0c6b419..cc75c8a 100644
--- a/src/pinger.cr
+++ b/src/pinger.cr
@@ -157,7 +157,7 @@ class Pinger
     when /sunos/
       [process, host, timeout.to_s]
     when "hp-ux"
-      [process, host, "-n#{count.to_s}", "-m", timeout.to_s]
+      [process, host, "-n#{count}", "-m", timeout.to_s]
     when /cygwin|mingw|msys/
       [process, "-n", count.to_s, "-w", (timeout * 1000).to_s, host]
     else