diff --git a/ui/text_import.c b/ui/text_import.c
index 1afa82d8d8..fa4419be3b 100644
--- a/ui/text_import.c
+++ b/ui/text_import.c
@@ -71,8 +71,8 @@
  * hexdump line is dropped (including mail forwarding '>'). The offset
  * can be any hex number of four digits or greater.
  *
- * This converter cannot read a single packet greater than 64K. Packet
- * snaplength is automatically set to 64K.
+ * This converter cannot read a single packet greater than 64KiB-1. Packet
+ * snaplength is automatically set to 64KiB-1.
  */
 
 #include "config.h"
diff --git a/ui/text_import.h b/ui/text_import.h
index 11ea4049cc..2b2fbd6bcb 100644
--- a/ui/text_import.h
+++ b/ui/text_import.h
@@ -38,7 +38,7 @@
 extern "C" {
 #endif /* __cplusplus */
 
-#define IMPORT_MAX_PACKET 64000
+#define IMPORT_MAX_PACKET 65535
 
 /* The parameter interface */