diff --git a/stepmania/src/Player.cpp b/stepmania/src/Player.cpp
index 118e36acbb..d1a745fc8c 100644
--- a/stepmania/src/Player.cpp
+++ b/stepmania/src/Player.cpp
@@ -11,7 +11,7 @@
 */
 
 #include "GameConstantsAndTypes.h"
-#include "Math.h" // for fabs()
+#include <math.h> // for fabs()
 #include "Player.h"
 #include "RageUtil.h"
 #include "PrefsManager.h"
diff --git a/stepmania/src/RageThreads.h b/stepmania/src/RageThreads.h
index dcb69a6203..987f79e03a 100644
--- a/stepmania/src/RageThreads.h
+++ b/stepmania/src/RageThreads.h
@@ -1,7 +1,7 @@
 #ifndef RAGE_THREADS_H
 #define RAGE_THREADS_H
 
-#include "SDL_Thread.h"
+#include "SDL_thread.h"
 
 /* Mutex class that follows the behavior of Windows mutexes: if the same
  * thread locks the same mutex twice, we just increase a refcount; a mutex