diff --git a/vp9/common/vp9_rtcd_defs.pl b/vp9/common/vp9_rtcd_defs.pl
index 66a3956a14051e36ccaf529eae6fffaaef43cf9d..68613ec967dcc11e6c3dd9e7567b867006f74d7f 100644
--- a/vp9/common/vp9_rtcd_defs.pl
+++ b/vp9/common/vp9_rtcd_defs.pl
@@ -402,25 +402,25 @@ if (vpx_config("CONFIG_VP9_ENCODER") eq "yes") {
 
 # variance
 add_proto qw/unsigned int vp9_variance32x16/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
-specialize qw/vp9_variance32x16/, "$sse2_x86inc", "$avx2_x86inc";
+specialize qw/vp9_variance32x16 avx2/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_variance16x32/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
 specialize qw/vp9_variance16x32/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_variance64x32/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
-specialize qw/vp9_variance64x32/, "$sse2_x86inc", "$avx2_x86inc";
+specialize qw/vp9_variance64x32 avx2/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_variance32x64/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
 specialize qw/vp9_variance32x64/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_variance32x32/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
-specialize qw/vp9_variance32x32/, "$sse2_x86inc", "$avx2_x86inc";
+specialize qw/vp9_variance32x32 avx2/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_variance64x64/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
-specialize qw/vp9_variance64x64/, "$sse2_x86inc", "$avx2_x86inc";
+specialize qw/vp9_variance64x64 avx2/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_variance16x16/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
-specialize qw/vp9_variance16x16 mmx/, "$sse2_x86inc", "$avx2_x86inc";
+specialize qw/vp9_variance16x16 mmx avx2/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_variance16x8/, "const uint8_t *src_ptr, int source_stride, const uint8_t *ref_ptr, int ref_stride, unsigned int *sse";
 specialize qw/vp9_variance16x8 mmx/, "$sse2_x86inc";
@@ -693,7 +693,7 @@ add_proto qw/void vp9_sad4x4x4d/, "const uint8_t *src_ptr, int  src_stride, cons
 specialize qw/vp9_sad4x4x4d sse/;
 
 add_proto qw/unsigned int vp9_mse16x16/, "const uint8_t *src_ptr, int  source_stride, const uint8_t *ref_ptr, int  recon_stride, unsigned int *sse";
-specialize qw/vp9_mse16x16 mmx/, "$sse2_x86inc", "$avx2_x86inc";
+specialize qw/vp9_mse16x16 mmx avx2/, "$sse2_x86inc";
 
 add_proto qw/unsigned int vp9_mse8x16/, "const uint8_t *src_ptr, int  source_stride, const uint8_t *ref_ptr, int  recon_stride, unsigned int *sse";
 specialize qw/vp9_mse8x16/;