diff --git a/tests/audiogen.c b/tests/audiogen.c
index 8d596b5108..c43bb70ff9 100644
--- a/tests/audiogen.c
+++ b/tests/audiogen.c
@@ -26,7 +26,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#define MAX_CHANNELS 8
+#define MAX_CHANNELS 12
 
 static unsigned int myrnd(unsigned int *seed_ptr, int n)
 {