diff --git a/postprocessing/janus-pp-rec.c b/postprocessing/janus-pp-rec.c
index f87b9f9d131..36eee7fe9cb 100644
--- a/postprocessing/janus-pp-rec.c
+++ b/postprocessing/janus-pp-rec.c
@@ -709,7 +709,12 @@ int main(int argc, char *argv[])
 			continue;
 		}
 		/* Only read RTP header */
-		bytes = fread(prebuffer, sizeof(char), len > 24 ? 24: len, file);
+		uint16_t rtp_header_len = len > 24 ? 24: len;
+		bytes = fread(prebuffer, sizeof(char), rtp_header_len, file);
+		if (bytes < rtp_header_len) {
+			JANUS_LOG(LOG_WARN, "Missing RTP packet header data (%i instead %i)\n", bytes, rtp_header_len);
+			break;
+		}
 		janus_pp_rtp_header *rtp = (janus_pp_rtp_header *)prebuffer;
 		JANUS_LOG(LOG_VERB, "  -- RTP packet (ssrc=%"SCNu32", pt=%"SCNu16", ext=%"SCNu16", seq=%"SCNu16", ts=%"SCNu32")\n",
 				ntohl(rtp->ssrc), rtp->type, rtp->extension, ntohs(rtp->seq_number), ntohl(rtp->timestamp));