diff --git a/src/Functions/formatReadableTimeDelta.cpp b/src/Functions/formatReadableTimeDelta.cpp
index 473a76c3849..e03dc1d5e9c 100644
--- a/src/Functions/formatReadableTimeDelta.cpp
+++ b/src/Functions/formatReadableTimeDelta.cpp
@@ -47,7 +47,7 @@ public:
 
     DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
     {
-        if (arguments.size() < 1)
+        if (arguments.empty())
             throw Exception(
                 "Number of arguments for function " + getName() + " doesn't match: passed " + toString(arguments.size())
                     + ", should be at least 1.",