diff --git a/connection.go b/connection.go
index c8d58153..fdf91d57 100644
--- a/connection.go
+++ b/connection.go
@@ -99,7 +99,9 @@ func (c *Connection) Open() error {
 		return errors.Wrap(err, "could not open database connection")
 	}
 	db.SetMaxOpenConns(details.Pool)
-	db.SetMaxIdleConns(details.IdlePool)
+	if details.IdlePool != 0 {
+		db.SetMaxIdleConns(details.IdlePool)
+	}
 	c.Store = &dB{db}
 
 	if d, ok := c.Dialect.(afterOpenable); ok {
diff --git a/connection_details.go b/connection_details.go
index 9d77d619..1e7f37a9 100644
--- a/connection_details.go
+++ b/connection_details.go
@@ -37,7 +37,7 @@ type ConnectionDetails struct {
 	URL string
 	// Defaults to 0 "unlimited". See https://golang.org/pkg/database/sql/#DB.SetMaxOpenConns
 	Pool int
-	// Defaults to 0 "unlimited". See https://golang.org/pkg/database/sql/#DB.SetMaxIdleConns
+	// Defaults to 2. See https://golang.org/pkg/database/sql/#DB.SetMaxIdleConns
 	IdlePool int
 	Options  map[string]string
 	// Query string encoded options from URL. Example: "sslmode=disable"