diff --git a/dbms/src/Functions/array/arrayCompact.cpp b/dbms/src/Functions/array/arrayCompact.cpp
index 4c04aff369a..f90faa457da 100644
--- a/dbms/src/Functions/array/arrayCompact.cpp
+++ b/dbms/src/Functions/array/arrayCompact.cpp
@@ -5,7 +5,7 @@
 
 namespace DB
 {
-/// arrayCompact(['a', 'a', 'b', 'b', 'a']) = ['a', 'b', 'a'] - compact arrays
+    /// arrayCompact(['a', 'a', 'b', 'b', 'a']) = ['a', 'b', 'a'] - compact arrays
     namespace ErrorCodes
     {
         extern const int ILLEGAL_COLUMN;