diff --git a/aom_dsp/aom_dsp.cmake b/aom_dsp/aom_dsp.cmake
index 9208706..7c0111a 100644
--- a/aom_dsp/aom_dsp.cmake
+++ b/aom_dsp/aom_dsp.cmake
@@ -192,6 +192,7 @@
 
   list(APPEND AOM_DSP_ENCODER_INTRIN_AVX2
               "${AOM_ROOT}/aom_dsp/x86/masked_sad_intrin_avx2.c"
+              "${AOM_ROOT}/aom_dsp/x86/subtract_avx2.c"
               "${AOM_ROOT}/aom_dsp/x86/highbd_quantize_intrin_avx2.c"
               "${AOM_ROOT}/aom_dsp/x86/sad4d_avx2.c"
               "${AOM_ROOT}/aom_dsp/x86/sad_avx2.c"