diff --git a/dbms/src/IO/CompressedReadBufferFromFile.h b/dbms/src/IO/CompressedReadBufferFromFile.h
index 2ff6c3e1985..d07fa060adc 100644
--- a/dbms/src/IO/CompressedReadBufferFromFile.h
+++ b/dbms/src/IO/CompressedReadBufferFromFile.h
@@ -15,7 +15,7 @@ namespace DB
 class CompressedReadBufferFromFile : public CompressedReadBufferBase, public BufferWithOwnMemory<ReadBuffer>
 {
 private:
- `  /** At any time, one of two things is true:
+      /** At any time, one of two things is true:
       * a) size_compressed = 0
       * b)
       *  - `working_buffer` contains the entire block.