diff --git a/src/Processors/Formats/Impl/TabSeparatedRowInputFormat.cpp b/src/Processors/Formats/Impl/TabSeparatedRowInputFormat.cpp
index 8bc5c7498f4..20b96c40b5a 100644
--- a/src/Processors/Formats/Impl/TabSeparatedRowInputFormat.cpp
+++ b/src/Processors/Formats/Impl/TabSeparatedRowInputFormat.cpp
@@ -332,12 +332,12 @@ void TabSeparatedRowInputFormat::tryDeserializeField(const DataTypePtr & type, I
     if (column_indexes_for_input_fields[file_column])
     {
         // check null value for type is not nullable. don't cross buffer bound for simplicity, so maybe missing some case
-        if(!type->isNullable() && !in.eof())
+        if (!type->isNullable() && !in.eof())
         {
-            if(*in.position() == '\\' && in.available() >= 2)
+            if (*in.position() == '\\' && in.available() >= 2)
             {
                 ++in.position();
-                if(*in.position() == 'N')
+                if (*in.position() == 'N')
                 {
                     ++in.position();
                     throw Exception("unexpected Null value of not Nullable type", ErrorCodes::INCORRECT_DATA);
diff --git a/src/Processors/Formats/RowInputFormatWithDiagnosticInfo.cpp b/src/Processors/Formats/RowInputFormatWithDiagnosticInfo.cpp
index 124c7ab439a..957e5bb2c82 100644
--- a/src/Processors/Formats/RowInputFormatWithDiagnosticInfo.cpp
+++ b/src/Processors/Formats/RowInputFormatWithDiagnosticInfo.cpp
@@ -145,7 +145,7 @@ bool RowInputFormatWithDiagnosticInfo::deserializeFieldAndPrintDiagnosticInfo(co
         {
             std::rethrow_exception(exception);
         }
-        catch (DB::Exception e)
+        catch (const DB::Exception & e)
         {
             out << e.what();
         }