diff --git a/vp9/encoder/x86/vp9_dct32x32_avx2.c b/vp9/encoder/x86/vp9_dct32x32_avx2_impl.h
similarity index 100%
rename from vp9/encoder/x86/vp9_dct32x32_avx2.c
rename to vp9/encoder/x86/vp9_dct32x32_avx2_impl.h
diff --git a/vp9/encoder/x86/vp9_dct_avx2.c b/vp9/encoder/x86/vp9_dct_avx2.c
index 3a19f5274..8f3b61ad8 100644
--- a/vp9/encoder/x86/vp9_dct_avx2.c
+++ b/vp9/encoder/x86/vp9_dct_avx2.c
@@ -15,12 +15,12 @@
 
 #define FDCT32x32_2D_AVX2 vp9_fdct32x32_rd_avx2
 #define FDCT32x32_HIGH_PRECISION 0
-#include "vp9/encoder/x86/vp9_dct32x32_avx2.c"
+#include "vp9/encoder/x86/vp9_dct32x32_avx2_impl.h"
 #undef  FDCT32x32_2D_AVX2
 #undef  FDCT32x32_HIGH_PRECISION
 
 #define FDCT32x32_2D_AVX2 vp9_fdct32x32_avx2
 #define FDCT32x32_HIGH_PRECISION 1
-#include "vp9/encoder/x86/vp9_dct32x32_avx2.c" // NOLINT
+#include "vp9/encoder/x86/vp9_dct32x32_avx2_impl.h" // NOLINT
 #undef  FDCT32x32_2D_AVX2
 #undef  FDCT32x32_HIGH_PRECISION
diff --git a/vp9/vp9cx.mk b/vp9/vp9cx.mk
index 7359b2de0..ba99a91bb 100644
--- a/vp9/vp9cx.mk
+++ b/vp9/vp9cx.mk
@@ -141,7 +141,7 @@ ifeq ($(CONFIG_VP9_TEMPORAL_DENOISING),yes)
 VP9_CX_SRCS-$(HAVE_SSE2) += encoder/x86/vp9_denoiser_sse2.c
 endif
 
-VP9_CX_SRCS-$(HAVE_AVX2) += encoder/x86/vp9_dct32x32_avx2.c
+VP9_CX_SRCS-$(HAVE_AVX2) += encoder/x86/vp9_dct32x32_avx2_impl.h
 VP9_CX_SRCS-$(HAVE_AVX2) += encoder/x86/vp9_dct_avx2.c
 VP9_CX_SRCS-$(HAVE_AVX2) += encoder/x86/vp9_error_intrin_avx2.c
 VP9_CX_SRCS-$(HAVE_AVX2) += encoder/x86/vp9_variance_avx2.c