Fixed comment typo.
diff --git a/src/audio/xaudio2/SDL_xaudio2.c b/src/audio/xaudio2/SDL_xaudio2.c
index abcbdfb..6fef7f2 100644
--- a/src/audio/xaudio2/SDL_xaudio2.c
+++ b/src/audio/xaudio2/SDL_xaudio2.c
@@ -58,7 +58,7 @@
/* The configure script already did any necessary checking */
# define SDL_XAUDIO2_HAS_SDK 1
#elif defined(__WINRT__)
-/* WinRT always has access to the .the XAudio 2 SDK */
+/* WinRT always has access to the the XAudio 2 SDK */
# define SDL_XAUDIO2_HAS_SDK
#else
/* XAudio2 exists as of the March 2008 DirectX SDK