diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c
index 539f9eefbc..a37ed2aaa1 100644
--- a/libavcodec/aacdec_fixed.c
+++ b/libavcodec/aacdec_fixed.c
@@ -416,7 +416,7 @@ static void apply_independent_coupling_fixed(AACContext *ac,
     int i, c, shift, round, tmp;
     const int gain = cce->coup.gain[index][0];
     const int *src = cce->ch[0].ret;
-    int *dest = target->ret;
+    unsigned int *dest = target->ret;
     const int len = 1024 << (ac->oc[1].m4ac.sbr == 1);
 
     c = cce_scale_fixed[gain & 7];