diff --git a/file.c b/file.c
index 967afb8b6..28022c85e 100644
--- a/file.c
+++ b/file.c
@@ -227,8 +227,8 @@ static int open_by_filename(const char *filename, const char *fmt, struct memblo
 	if (!strcasecmp(fmt, "SDE"))
 		return try_to_open_zip(filename, mem, error);
 
-	/* divelogs.de files: divelogsData.zip */
-	if (!strcasecmp(fmt, "ZIP"))
+	/* divelogs.de files: DLD */
+	if (!strcasecmp(fmt, "DLD"))
 		return try_to_open_zip(filename, mem, error);
 
 	/* Truly nasty intentionally obfuscated Cochran Anal software */
diff --git a/gtk-gui.c b/gtk-gui.c
index 65a308c55..f34393cc4 100644
--- a/gtk-gui.c
+++ b/gtk-gui.c
@@ -126,8 +126,8 @@ static GtkFileFilter *setup_filter(void)
 #ifdef LIBZIP
 	gtk_file_filter_add_pattern(filter, "*.sde");
 	gtk_file_filter_add_pattern(filter, "*.SDE");
-	gtk_file_filter_add_pattern(filter, "*.zip");
-	gtk_file_filter_add_pattern(filter, "*.ZIP");
+	gtk_file_filter_add_pattern(filter, "*.dld");
+	gtk_file_filter_add_pattern(filter, "*.DLD");
 #endif
 	gtk_file_filter_add_mime_type(filter, "text/xml");
 	gtk_file_filter_set_name(filter, _("XML file"));