diff --git a/vp8/encoder/x86/csystemdependent.c b/vp8/encoder/x86/csystemdependent.c
index bf12fee54aa895fcb1b2ba715a2e3af0bc2a268e..4bb6b60b8b3516b9c2fc593b2083628a6da91627 100644
--- a/vp8/encoder/x86/csystemdependent.c
+++ b/vp8/encoder/x86/csystemdependent.c
@@ -180,7 +180,10 @@ void vp8_cmachine_specific_config(void)
     {
         // Willamette instruction set available:
         vp8_mbuverror                = vp8_mbuverror_xmm;
-        vp8_fast_quantize_b            = vp8_fast_quantize_b_sse;
+        /* The sse quantizer has not been updated to match the new exact
+         * quantizer introduced in commit e04e2935
+         */
+        vp8_fast_quantize_b            = vp8_fast_quantize_b_c;
 #if 0 //new fdct
         vp8_short_fdct4x4             = vp8_short_fdct4x4_mmx;
         vp8_short_fdct8x4             = vp8_short_fdct8x4_mmx;
@@ -224,7 +227,10 @@ void vp8_cmachine_specific_config(void)
     {
         // MMX instruction set available:
         vp8_mbuverror                = vp8_mbuverror_mmx;
-        vp8_fast_quantize_b            = vp8_fast_quantize_b_mmx;
+        /* The mmx quantizer has not been updated to match the new exact
+         * quantizer introduced in commit e04e2935
+         */
+        vp8_fast_quantize_b            = vp8_fast_quantize_b_c;
 #if 0 // new fdct
         vp8_short_fdct4x4             = vp8_short_fdct4x4_mmx;
         vp8_short_fdct8x4             = vp8_short_fdct8x4_mmx;
diff --git a/vp8/encoder/x86/quantize_x86.h b/vp8/encoder/x86/quantize_x86.h
index 37d69a890380ba047724e38946f05a68d690332b..31a43e42893fd380ba73e36f090602f0ff27d43e 100644
--- a/vp8/encoder/x86/quantize_x86.h
+++ b/vp8/encoder/x86/quantize_x86.h
@@ -27,8 +27,11 @@ extern prototype_quantize_block(vp8_regular_quantize_b_sse2);
 
 #if !CONFIG_RUNTIME_CPU_DETECT
 
-#undef vp8_quantize_quantb
-#define vp8_quantize_quantb vp8_regular_quantize_b_sse2
+/* The sse2 quantizer has not been updated to match the new exact
+ * quantizer introduced in commit e04e2935
+ *#undef vp8_quantize_quantb
+ *#define vp8_quantize_quantb vp8_regular_quantize_b_sse2
+ */
 
 #endif