diff --git a/dbms/src/Functions/FunctionsString.cpp b/dbms/src/Functions/FunctionsString.cpp
index 4a3e33770bc..9a780689c39 100644
--- a/dbms/src/Functions/FunctionsString.cpp
+++ b/dbms/src/Functions/FunctionsString.cpp
@@ -878,7 +878,7 @@ public:
         {
             start_value = column_start_const->getInt(0);
             if (start_value > 0x8000000000000000ULL)    /// Larger value could lead to overflow, then bypass bounds checking and read wrong data.
-                throw Exception("Too large values of second argument provided for function substring.", ErrorCodes::ARGUMENT_OUT_OF_BOUND);
+                throw Exception("Too large value of second argument provided for function substring.", ErrorCodes::ARGUMENT_OUT_OF_BOUND);
         }
         if (column_length_const)
         {
@@ -886,7 +886,7 @@ public:
             if (length_value < 0)
                 throw Exception("Third argument provided for function substring could not be negative.", ErrorCodes::ARGUMENT_OUT_OF_BOUND);
             if (length_value > 0x8000000000000000ULL)
-                throw Exception("Too large values of second argument provided for function substring.", ErrorCodes::ARGUMENT_OUT_OF_BOUND);
+                throw Exception("Too large value of third argument provided for function substring.", ErrorCodes::ARGUMENT_OUT_OF_BOUND);
         }
 
         if (const ColumnString * col = checkAndGetColumn<ColumnString>(&*column_string))