diff --git a/glibc-rh801650.patch b/glibc-rh801650.patch
index d3c8c60..d357cf2 100644
--- a/glibc-rh801650.patch
+++ b/glibc-rh801650.patch
@@ -92,12 +92,12 @@ diff -rup c/sysdeps/x86_64/multiarch/init-arch.c d/sysdeps/x86_64/multiarch/init
 +		     : "=a" (xcrlow), "=d" (xcrhigh) : "c" (0));
 +		(xcrlow & (bit_YMM_state | bit_XMM_state)) ==
 +		 (bit_YMM_state | bit_XMM_state); }))
-+	__cpu_features.feature[index_AVX_Usable] = 1;
++	__cpu_features.feature[index_AVX_Usable] |= bit_AVX_Usable;
 +    }
 +
 +  /* FMA4 depends on AVX support.  */
 +  if ((__cpu_features.cpuid[COMMON_CPUID_INDEX_80000001].ecx & bit_FMA4) &&  __cpu_features.feature[index_AVX_Usable])
-+	__cpu_features.feature[index_FMA4_Usable] = 1;
++	__cpu_features.feature[index_FMA4_Usable] |= bit_FMA4_Usable;
 +
    __cpu_features.family = family;
    __cpu_features.model = model;
diff --git a/glibc.spec b/glibc.spec
index 9c1bd57..983a957 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -28,7 +28,7 @@
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: 38%{?dist}
+Release: 39%{?dist}
 # GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
 # Things that are linked directly into dynamically linked programs
 # and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
@@ -1315,6 +1315,9 @@ rm -f *.filelist*
 %endif
 
 %changelog
+* Mon May 14 2012 Jeff Law <law@redhat.com> - 2.15-39
+  - Update upstream patch for AVX testing (#801650)
+
 * Fri May 11 2012 Jeff Law <law@redhat.com> - 2.15-38
   - Upstream patch to fix AVX testing (#801650)