diff --git a/targets/ARCH/ETHERNET/benetel/4g/benetel.c b/targets/ARCH/ETHERNET/benetel/4g/benetel.c
index 37f55c689f..76855111e1 100644
--- a/targets/ARCH/ETHERNET/benetel/4g/benetel.c
+++ b/targets/ARCH/ETHERNET/benetel/4g/benetel.c
@@ -207,7 +207,7 @@ next:
     uint16_t *in;
     uint16_t *out;
     in = (uint16_t *)s->buffers.prach[*subframe];
-    out = (uint16_t *)ru->prach_rxsigF[antenna];
+    out = (uint16_t *)ru->prach_rxsigF[0][antenna];
     for (i = 0; i < 840*2; i++)
       out[i] = ntohs(in[i]);
     s->buffers.prach_busy[*subframe] = 0;
diff --git a/targets/ARCH/ETHERNET/benetel/5g/benetel.c b/targets/ARCH/ETHERNET/benetel/5g/benetel.c
index c1ae1afcc7..72ecff6b34 100644
--- a/targets/ARCH/ETHERNET/benetel/5g/benetel.c
+++ b/targets/ARCH/ETHERNET/benetel/5g/benetel.c
@@ -215,7 +215,7 @@ next:
     uint16_t *in;
     uint16_t *out;
     in = (uint16_t *)s->buffers.prach[*slot];
-    out = (uint16_t *)ru->prach_rxsigF[antenna];
+    out = (uint16_t *)ru->prach_rxsigF[0][antenna];
     for (i = 0; i < 839*2; i++)
       out[i] = ntohs(in[i]);
     s->buffers.prach_busy[*slot] = 0;