diff --git a/channels/remdesk/client/remdesk_main.c b/channels/remdesk/client/remdesk_main.c
index 53ea9eb5a..7df6d634e 100644
--- a/channels/remdesk/client/remdesk_main.c
+++ b/channels/remdesk/client/remdesk_main.c
@@ -38,7 +38,7 @@ RemdeskClientContext* remdesk_get_client_interface(remdeskPlugin* remdesk)
 	return pInterface;
 }
 
-int remdesk_virtual_channel_write(remdeskPlugin* remdesk, wStream* s)
+static int remdesk_virtual_channel_write(remdeskPlugin* remdesk, wStream* s)
 {
 	UINT32 status = 0;
 
diff --git a/channels/remdesk/server/remdesk_main.c b/channels/remdesk/server/remdesk_main.c
index fa4bde6af..51d276ad3 100644
--- a/channels/remdesk/server/remdesk_main.c
+++ b/channels/remdesk/server/remdesk_main.c
@@ -27,7 +27,7 @@
 
 #include "remdesk_main.h"
 
-int remdesk_virtual_channel_write(RemdeskServerContext* context, wStream* s)
+static int remdesk_virtual_channel_write(RemdeskServerContext* context, wStream* s)
 {
 	BOOL status;
 	ULONG BytesWritten = 0;