diff --git a/src/interfaces/ecpg/preproc/ecpg.addons b/src/interfaces/ecpg/preproc/ecpg.addons
index e94da2a3f8d..50601554763 100644
--- a/src/interfaces/ecpg/preproc/ecpg.addons
+++ b/src/interfaces/ecpg/preproc/ecpg.addons
@@ -248,7 +248,7 @@ ECPG: where_or_current_clauseWHERECURRENT_POFcursor_name block
 		$$ = cat_str(2,mm_strdup("where current of"), cursor_marker);
 	}
 ECPG: CopyStmtCOPYopt_binaryqualified_nameopt_column_listcopy_fromopt_programcopy_file_namecopy_delimiteropt_withcopy_optionswhere_clause addon
-			if (strcmp($6, "from") == 0 &&
+			if (strcmp($5, "from") == 0 &&
 			   (strcmp($7, "stdin") == 0 || strcmp($7, "stdout") == 0))
 				mmerror(PARSE_ERROR, ET_WARNING, "COPY FROM STDIN is not implemented");
 ECPG: var_valueNumericOnly addon