diff --git a/skeletons/OCTET_STRING.c b/skeletons/OCTET_STRING.c
index c9d5148..d60d5bd 100644
--- a/skeletons/OCTET_STRING.c
+++ b/skeletons/OCTET_STRING.c
@@ -1267,7 +1267,10 @@
 		/* Get the PER length */
 		len_bits = uper_get_length(pd, ct->effective_bits, &repeat);
 		if(len_bits < 0) RETURN(RC_FAIL);
+		len_bits += ct->lower_bound;
 
+		ASN_DEBUG("Got per length eb %ld, len %ld",
+			ct->effective_bits, (long)len_bits);
 		if(unit_bits == 1) {
 			len_bytes = (len_bits + 7) >> 3;
 			if(len_bits & 0x7)