diff --git a/spec/redis_pooled_client_spec.cr b/spec/redis_pooled_client_spec.cr
index ad88adc..939ff0c 100644
--- a/spec/redis_pooled_client_spec.cr
+++ b/spec/redis_pooled_client_spec.cr
@@ -13,7 +13,7 @@ describe Redis::PooledClient do
       client.pool.checkout
       client.pool.checkout
 
-      expect_raises(Redis::PoolTimeoutError, "No free connection (used 2 of 2) after timeout of 00:00:00.010000000s") do
+      expect_raises(Redis::PoolTimeoutError, "No free connection (used 2 of 2) after timeout of 0.01s") do
         client.get("bla")
       end
     end
diff --git a/src/redis/pooled_client.cr b/src/redis/pooled_client.cr
index 918141d..1ba9508 100644
--- a/src/redis/pooled_client.cr
+++ b/src/redis/pooled_client.cr
@@ -42,7 +42,7 @@ class Redis::PooledClient
     conn = begin
       @pool.checkout
     rescue IO::TimeoutError
-      raise Redis::PoolTimeoutError.new("No free connection (used #{@pool.size} of #{@pool.capacity}) after timeout of #{@pool.timeout}s")
+      raise Redis::PoolTimeoutError.new("No free connection (used #{@pool.size} of #{@pool.capacity}) after timeout of #{@pool.timeout.to_f}s")
     end
 
     begin