diff -r abe0c5a78d68 Modules/audioop.c
--- a/Modules/audioop.c	Thu May 28 17:10:29 2015 -0400
+++ b/Modules/audioop.c	Thu May 28 15:42:56 2015 -0700
@@ -1331,7 +1331,7 @@
     /* divide weightA and weightB by their greatest common divisor */
     d = gcd(weightA, weightB);
     weightA /= d;
-    weightA /= d;
+    weightB /= d;
 
     if ((size_t)nchannels > PY_SIZE_MAX/sizeof(int)) {
         PyErr_SetString(PyExc_MemoryError,