diff --git a/src/dd.c b/src/dd.c
index 4075076..908fa88 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -649,6 +649,10 @@ HRESULT dd_SetDisplayMode(DWORD dwWidth, DWORD dwHeight, DWORD dwBPP, DWORD dwFl
     memset(&g_ddraw->render.mode, 0, sizeof(DEVMODE));
     g_ddraw->render.mode.dmSize = sizeof(DEVMODE);
 
+    g_ddraw->render.mode.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
+    g_ddraw->render.mode.dmPelsWidth = g_ddraw->render.width;
+    g_ddraw->render.mode.dmPelsHeight = g_ddraw->render.height;
+
     if (g_config.refresh_rate)
     {
         g_ddraw->render.mode.dmFields |= DM_DISPLAYFREQUENCY;
@@ -658,15 +662,11 @@ HRESULT dd_SetDisplayMode(DWORD dwWidth, DWORD dwHeight, DWORD dwBPP, DWORD dwFl
         {
             g_config.refresh_rate = 0;
 
-            g_ddraw->render.mode.dmFields = 0;
+            g_ddraw->render.mode.dmFields &= ~DM_DISPLAYFREQUENCY;
             g_ddraw->render.mode.dmDisplayFrequency = 0;
         }
     }
 
-    g_ddraw->render.mode.dmFields |= DM_PELSWIDTH | DM_PELSHEIGHT;
-    g_ddraw->render.mode.dmPelsWidth = g_ddraw->render.width;
-    g_ddraw->render.mode.dmPelsHeight = g_ddraw->render.height;
-
     if (!g_config.windowed)
     {
         /* Making sure the chosen resolution is valid */