diff --git a/stepmania/src/global.cpp b/stepmania/src/global.cpp
index 38e23df7f7..68ff882255 100644
--- a/stepmania/src/global.cpp
+++ b/stepmania/src/global.cpp
@@ -13,6 +13,7 @@ void NORETURN sm_crash()
 }
 #elif defined(LINUX) || defined(DARWIN)
 #include "archutils/Unix/CrashHandler.h"
+#include <unistd.h>
 void NORETURN sm_crash()
 {
 	ForceCrashHandler( "Internal error" );