diff --git a/src/driver.cpp b/src/driver.cpp
--- a/src/driver.cpp
+++ b/src/driver.cpp
@@ -109,7 +109,7 @@ void DriverFactoryBase::SelectDriver(con
  */
 bool DriverFactoryBase::SelectDriverImpl(const std::string &name, Driver::Type type)
 {
-	if (GetDrivers().size() == 0) return false;
+	if (GetDrivers().empty()) return false;
 
 	if (name.empty()) {
 		/* Probe for this driver, but do not fall back to dedicated/null! */