diff --git a/client/Windows/wf_client.c b/client/Windows/wf_client.c
index 610bbc20e..c9054a0e4 100644
--- a/client/Windows/wf_client.c
+++ b/client/Windows/wf_client.c
@@ -55,6 +55,7 @@
 #include <freerdp/client/cmdline.h>
 #include <freerdp/client/channels.h>
 #include <freerdp/channels/channels.h>
+#include <freerdp/utils/signal.h>
 
 #include "wf_gdi.h"
 #include "wf_rail.h"
diff --git a/libfreerdp/utils/signal_win32.c b/libfreerdp/utils/signal_win32.c
index 1a7ce79ab..f74570376 100644
--- a/libfreerdp/utils/signal_win32.c
+++ b/libfreerdp/utils/signal_win32.c
@@ -71,7 +71,7 @@ static BOOL register_handlers(const int* signals, size_t count, void (*handler)(
 
 	for (size_t x = 0; x < count; x++)
 	{
-		signal(signals[x], handler);
+		(void)signal(signals[x], handler);
 	}
 
 	return TRUE;
@@ -83,7 +83,7 @@ static void unregister_handlers(const int* signals, size_t count)
 
 	for (size_t x = 0; x < count; x++)
 	{
-		signal(signals[x], SIG_IGN);
+		(void)signal(signals[x], SIG_IGN);
 	}
 }