diff -r d3db276c1fa6 src/video/windows/SDL_windowskeyboard.c
--- a/src/video/windows/SDL_windowskeyboard.c	Tue May 10 21:15:11 2016 +0200
+++ b/src/video/windows/SDL_windowskeyboard.c	Tue May 10 23:14:15 2016 -0700
@@ -158,8 +158,44 @@
 }
 
 void
+WIN_ResetDeadKeys()
+{
+    /*
+    if a deadkey has been typed, but not the next character (which the deadkey might modify), 
+    this tries to undo the effect pressing the deadkey.
+    see: http://archives.miloush.net/michkap/archive/2006/09/10/748775.html
+    */
+
+    BYTE keyboardState[256];
+    WCHAR buffer[16];
+    int keycode, scancode, result, i;
+   
+    GetKeyboardState(keyboardState);
+
+    keycode = VK_SPACE;
+    scancode = MapVirtualKey(keycode, MAPVK_VK_TO_VSC);
+    if (scancode == 0)
+    {
+        /* the keyboard doesn't have this key */
+        return;
+    }
+
+    for (i = 0; i < 5; i++) 
+    {
+        result = ToUnicode(keycode, scancode, keyboardState, (LPWSTR)buffer, 16, 0);
+        if (result > 0)
+        {
+            /* success */
+            return;
+        }
+    }
+}
+
+void
 WIN_StartTextInput(_THIS)
 {
+    WIN_ResetDeadKeys();
+
 #ifndef SDL_DISABLE_WINDOWS_IME
     SDL_Window *window = SDL_GetKeyboardFocus();
     if (window) {
@@ -175,6 +211,8 @@
 void
 WIN_StopTextInput(_THIS)
 {
+    WIN_ResetDeadKeys();
+ 
 #ifndef SDL_DISABLE_WINDOWS_IME
     SDL_Window *window = SDL_GetKeyboardFocus();
     if (window) {