diff --git a/components/log/log.c b/components/log/log.c
index 370c8b01c..589f1983a 100644
--- a/components/log/log.c
+++ b/components/log/log.c
@@ -419,8 +419,8 @@ void esp_log_buffer_hexdump_internal( const char *tag, const void *buffer, uint1
     char temp_buffer[BYTES_PER_LINE+3];   //for not-byte-accessible memory
     const char *ptr_line;
     //format: field[length]
-    // ADDR[10]+" "+DATA_HEX[8*3]+" "+DATA_HEX[8*3]+"  |"+DATA_CHAR[8]+"|"
-    char hd_buffer[10+2+BYTES_PER_LINE*3+3+BYTES_PER_LINE+1+1];
+    // ADDR[10]+"   "+DATA_HEX[8*3]+" "+DATA_HEX[8*3]+"  |"+DATA_CHAR[8]+"|"
+    char hd_buffer[10+3+BYTES_PER_LINE*3+3+BYTES_PER_LINE+1+1];
     char *ptr_hd;
     int bytes_cur_line;