diff --git a/vp9/encoder/vp9_variance_c.c b/vp9/encoder/vp9_variance.c
similarity index 100%
rename from vp9/encoder/vp9_variance_c.c
rename to vp9/encoder/vp9_variance.c
diff --git a/vp9/vp9cx.mk b/vp9/vp9cx.mk
index 63003b9c2460fba03447c46b1ac7194a09c68733..131d6c77fb66d941ec81db66eb3a48a7c475c73e 100644
--- a/vp9/vp9cx.mk
+++ b/vp9/vp9cx.mk
@@ -66,7 +66,7 @@ VP9_CX_SRCS-yes += encoder/vp9_resize.h
 VP9_CX_SRCS-$(CONFIG_INTERNAL_STATS) += encoder/vp9_ssim.c
 VP9_CX_SRCS-yes += encoder/vp9_tokenize.c
 VP9_CX_SRCS-yes += encoder/vp9_treewriter.c
-VP9_CX_SRCS-yes += encoder/vp9_variance_c.c
+VP9_CX_SRCS-yes += encoder/vp9_variance.c
 VP9_CX_SRCS-yes += encoder/vp9_vaq.c
 VP9_CX_SRCS-yes += encoder/vp9_vaq.h
 ifeq ($(CONFIG_VP9_POSTPROC),yes)