diff --git a/dbms/src/DataStreams/PrettyBlockOutputStream.cpp b/dbms/src/DataStreams/PrettyBlockOutputStream.cpp
index f6a7dab3081..87703d83116 100644
--- a/dbms/src/DataStreams/PrettyBlockOutputStream.cpp
+++ b/dbms/src/DataStreams/PrettyBlockOutputStream.cpp
@@ -79,9 +79,13 @@ void PrettyBlockOutputStream::calculateWidths(const Block & block, WidthsPerColu
 
         /// And also calculate widths for names of columns.
         {
-            const String & name = elem.name;
+            /// We need to obtain length in escaped form.
+            {
+                WriteBufferFromString out(serialized_value);
+                writeEscapedString(elem.name, out);
+            }
 
-            name_widths[i] = UTF8::countCodePoints(reinterpret_cast<const UInt8 *>(name.data()), name.size());
+            name_widths[i] = UTF8::countCodePoints(reinterpret_cast<const UInt8 *>(serialized_value.data()), serialized_value.size());
             max_widths[i] = std::max(max_widths[i], name_widths[i]);
         }
     }
diff --git a/dbms/src/DataStreams/VerticalRowOutputStream.cpp b/dbms/src/DataStreams/VerticalRowOutputStream.cpp
index d12f3382289..ba4a41dcb78 100644
--- a/dbms/src/DataStreams/VerticalRowOutputStream.cpp
+++ b/dbms/src/DataStreams/VerticalRowOutputStream.cpp
@@ -2,6 +2,7 @@
 #include <DataTypes/DataTypeString.h>
 #include <DataTypes/DataTypesNumber.h>
 #include <IO/WriteHelpers.h>
+#include <IO/WriteBufferFromString.h>
 #include <DataStreams/VerticalRowOutputStream.h>
 #include <Common/UTF8Helpers.h>
 
@@ -19,11 +20,20 @@ VerticalRowOutputStream::VerticalRowOutputStream(
     Widths name_widths(columns);
     size_t max_name_width = 0;
 
+    String serialized_value;
+
     for (size_t i = 0; i < columns; ++i)
     {
         /// Note that number of code points is just a rough approximation of visible string width.
         const String & name = sample.getByPosition(i).name;
-        name_widths[i] = UTF8::countCodePoints(reinterpret_cast<const UInt8 *>(name.data()), name.size());
+
+        {
+            /// We need to obtain length in escaped form.
+            WriteBufferFromString out(serialized_value);
+            writeEscapedString(name, out);
+        }
+
+        name_widths[i] = UTF8::countCodePoints(reinterpret_cast<const UInt8 *>(serialized_value.data()), serialized_value.size());
 
         if (name_widths[i] > max_name_width)
             max_name_width = name_widths[i];