diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index 8513e86329..5c776fd04e 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -41,9 +41,6 @@
 #include "vorbis.h"
 #include "png.h"
 
-/* snow.c */
-void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count);
-
 uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP] = {0, };
 uint32_t ff_squareTbl[512] = {0, };
 
diff --git a/libavcodec/snow.h b/libavcodec/snow.h
index 5d5ae1e68a..3dbc618fae 100644
--- a/libavcodec/snow.h
+++ b/libavcodec/snow.h
@@ -133,6 +133,8 @@ static int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int
 static int w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {assert (0); return 0;}
 #endif
 
+void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count);
+
 /* C bits used by mmx/sse2/altivec */
 
 static av_always_inline void snow_interleave_line_header(int * i, int width, IDWTELEM * low, IDWTELEM * high){