diff --git a/src/connector/odbc/src/todbc_string.h b/src/connector/odbc/src/todbc_string.h
index 52d25b8cfe3210ab3e8a97b45d05b7627af3c4a4..eed3356847a16ab383da63eaa8c503312273136a 100644
--- a/src/connector/odbc/src/todbc_string.h
+++ b/src/connector/odbc/src/todbc_string.h
@@ -25,7 +25,6 @@
 
 typedef struct todbc_string_s            todbc_string_t;
 struct todbc_string_s {
-  char                     enc[64];
   // null if init failed because of internal resources shortage
   const unsigned char     *buf;             // null-terminator inclusive
   size_t                   total_bytes;     // not counting null-terminator
@@ -33,6 +32,9 @@ struct todbc_string_s {
   // <= total_bytes
   // truncated if < total_bytes
   size_t                   bytes;           // not counting null-terminator
+
+  // move here to satisfy todbc_string_t dummy = {0};
+  char                     enc[64];
 };