diff --git a/al/listener.cpp b/al/listener.cpp
index 30ceed0404..0cccf4ffd9 100644
--- a/al/listener.cpp
+++ b/al/listener.cpp
@@ -31,11 +31,10 @@
 #include "AL/efx.h"
 
 #include "alc/context.h"
-#include "alc/inprogext.h"
+#include "alnumeric.h"
 #include "alspan.h"
 #include "direct_defs.h"
 #include "error.h"
-#include "opthelpers.h"
 
 
 namespace {