diff --git a/contrib/mod_defender/spoa.c b/contrib/mod_defender/spoa.c
index c4e15bb44..1191260a4 100644
--- a/contrib/mod_defender/spoa.c
+++ b/contrib/mod_defender/spoa.c
@@ -460,6 +460,7 @@ handle_hahello(struct spoe_frame *frame)
 
 	/* Retrieve flags */
 	memcpy((char *)&(frame->flags), p, 4);
+	frame->flags = ntohl(frame->flags);
 	p += 4;
 
 	/* Fragmentation is not supported for HELLO frame */
@@ -567,6 +568,7 @@ handle_hadiscon(struct spoe_frame *frame)
 
 	/* Retrieve flags */
 	memcpy((char *)&(frame->flags), p, 4);
+	frame->flags = ntohl(frame->flags);
 	p += 4;
 
 	/* Fragmentation is not supported for DISCONNECT frame */
@@ -648,6 +650,7 @@ handle_hanotify(struct spoe_frame *frame)
 
 	/* Retrieve flags */
 	memcpy((char *)&(frame->flags), p, 4);
+	frame->flags = ntohl(frame->flags);
 	p += 4;
 
 	/* Fragmentation is not supported */
@@ -710,6 +713,7 @@ handle_hafrag(struct spoe_frame *frame)
 
 	/* Retrieve flags */
 	memcpy((char *)&(frame->flags), p, 4);
+	frame->flags = ntohl(frame->flags);
 	p+= 4;
 
 	/* Read the stream-id and frame-id */
@@ -772,6 +776,7 @@ prepare_agenthello(struct spoe_frame *frame)
 	*p++ = SPOE_FRM_T_AGENT_HELLO;
 
 	/* Set flags */
+	flags = htonl(flags);
 	memcpy(p, (char *)&flags, 4);
 	p += 4;
 
@@ -853,6 +858,7 @@ prepare_agentdicon(struct spoe_frame *frame)
 	*p++ = SPOE_FRM_T_AGENT_DISCON;
 
 	/* Set flags */
+	flags = htonl(flags);
 	memcpy(p, (char *)&flags, 4);
 	p += 4;
 
@@ -900,6 +906,7 @@ prepare_agentack(struct spoe_frame *frame)
 	*p++ = SPOE_FRM_T_AGENT_ACK;
 
 	/* Set flags */
+	flags = htonl(flags);
 	memcpy(p, (char *)&flags, 4);
 	p += 4;