diff --git a/src/cfgparse.c b/src/cfgparse.c
index 4e577aa..a262404 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -5119,7 +5119,7 @@
 									((unsigned char) (packetlen >> 16) & 0xff));
 
 								curproxy->check_req[3] = 1;
-								curproxy->check_req[5] = 130;
+								curproxy->check_req[5] = 0x82; // 130
 								curproxy->check_req[11] = 1;
 								curproxy->check_req[12] = 33;
 								memcpy(&curproxy->check_req[36], mysqluser, userlen);
@@ -5145,7 +5145,7 @@
 								((unsigned char) (packetlen >> 16) & 0xff));
 
 							curproxy->check_req[3] = 1;
-							curproxy->check_req[5] = 128;
+							curproxy->check_req[5] = 0x80;
 							curproxy->check_req[8] = 1;
 							memcpy(&curproxy->check_req[9], mysqluser, userlen);
 							curproxy->check_req[9 + userlen + 1 + 1]     = 1;