diff --git a/src/common/engine/i_interface.cpp b/src/common/engine/i_interface.cpp
index b95563279..7fc82c4cc 100644
--- a/src/common/engine/i_interface.cpp
+++ b/src/common/engine/i_interface.cpp
@@ -1,3 +1,4 @@
 #include "i_interface.h"
 
 SystemCallbacks *sysCallbacks;
+double refreshfreq;
\ No newline at end of file
diff --git a/src/win32/hardware.cpp b/src/win32/hardware.cpp
index 1da091824..3cadc1ced 100644
--- a/src/win32/hardware.cpp
+++ b/src/win32/hardware.cpp
@@ -139,7 +139,7 @@ void I_InitGraphics ()
 	else
 #endif
 #ifdef HAVE_VULKAN
-	else if (vid_preferbackend == 1)
+	if (vid_preferbackend == 1)
 	{
 		// first try Vulkan, if that fails OpenGL
 		try
diff --git a/src/win32/i_input.cpp b/src/win32/i_input.cpp
index c0d896dcb..2a67766bd 100644
--- a/src/win32/i_input.cpp
+++ b/src/win32/i_input.cpp
@@ -136,7 +136,7 @@ extern bool AppActive;
 
 int SessionState = 0;
 int BlockMouseMove; 
-double refreshfreq;
+extern double refreshfreq;
 
 static bool EventHandlerResultForNativeMouse;