diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c
index 45c7650efb..28f884a3f6 100644
--- a/libavcodec/takdec.c
+++ b/libavcodec/takdec.c
@@ -656,7 +656,7 @@ static int decorrelate(TAKDecContext *s, int c1, int c2, int length)
                 *p1++ = v;
             }
 
-            memcpy(s->residues, &s->residues[tmp], 2 * filter_order);
+            memmove(s->residues, &s->residues[tmp], 2 * filter_order);
         }
 
         emms_c();