diff --git a/text2pcap.c b/text2pcap.c
index 13b2afdff9..585d109018 100644
--- a/text2pcap.c
+++ b/text2pcap.c
@@ -555,10 +555,10 @@ finalize_crc32c(guint32 crc32)
     return ( result );
 }
 
-static unsigned long
+static guint16
 number_of_padding_bytes (unsigned long length)
 {
-    unsigned long remainder;
+    guint16 remainder;
 
     remainder = length % 4;