diff --git a/media/libcubeb/include/cubeb_export.h b/media/libcubeb/include/cubeb_export.h
new file mode 100644
index 000000000000..a0b3543b725a
--- /dev/null
+++ b/media/libcubeb/include/cubeb_export.h
@@ -0,0 +1,5 @@
+/**
+ * This defines CUBEB_EXPORT to an empty string, we don't need any annotation to
+ * build in Gecko.
+ */
+#define CUBEB_EXPORT