diff --git a/src/native/common/extal.h b/src/native/common/extal.h
index 598eac0e..526caed4 100644
--- a/src/native/common/extal.h
+++ b/src/native/common/extal.h
@@ -49,3 +49,4 @@ EAXGet  eaxGet;                                         // EAXGet function, ret$
 #include <AL/alc.h>
 #include <AL/alut.h>
 #endif
+#endif