diff --git a/src/Functions/array/mapPopulateSeries.cpp b/src/Functions/array/mapPopulateSeries.cpp
index 2050e0c28ab..c025117af69 100644
--- a/src/Functions/array/mapPopulateSeries.cpp
+++ b/src/Functions/array/mapPopulateSeries.cpp
@@ -190,7 +190,7 @@ private:
             }
 
             static constexpr size_t MAX_ARRAY_SIZE = 1ULL << 30;
-            if (static_cast<size_t>(max_key - min_key) > MAX_ARRAY_SIZE)
+            if (static_cast<size_t>(max_key) - static_cast<size_t>(min_key) > MAX_ARRAY_SIZE)
                 throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Too large array size in the result of function {}", getName());
 
             /* fill the result arrays */