diff --git a/external/egf/hardware.h b/external/egf/hardware.h
index c44dc4c..69dca1c 100644
--- a/external/egf/hardware.h
+++ b/external/egf/hardware.h
@@ -1,3 +1,4 @@
+// vim:tabstop=4 shiftwidth=4 syntax=objc
 /**
  * \file hardware.h
  * \brief Functions to query the underlying hardware.
@@ -47,7 +48,6 @@ struct Hardware_info_t
 	HW_FAMILY family;			// Hardware family.
 	char version;				// Zero or positive means recognised version.
 	char *name;					// Hardware name as C string.
-	char udid[UDID_LEN + 1];	// UDID plus NULL terminator.
 };
 
 
@@ -56,5 +56,3 @@ void destroy_hardware_info(Hardware_info **info);
 
 
 #endif // __EGF_HARDWARE_H__
-
-// vim:tabstop=4 shiftwidth=4 syntax=objc
diff --git a/external/egf/hardware.m b/external/egf/hardware.m
index 3a6d86d..e9b2954 100644
--- a/external/egf/hardware.m
+++ b/external/egf/hardware.m
@@ -1,4 +1,4 @@
-// vim:tabstop=4 shiftwidth=4 encoding=utf-8 syntax=objc
+// vim:tabstop=4 shiftwidth=4 syntax=objc
 
 #include "egf/hardware.h"
 
@@ -34,26 +34,12 @@
 	}
 	info->name = calloc(1, size);
 	if (!info->name) {
-		DLOG(@"Not enough memory to get hardware name (%lu).", size);
+		DLOG(@"Not enough memory to get hardware name (%ld).", size);
 		free(info);
 		info = 0;
 		goto exit;
 	}
 
-	info->udid[0] = 0;
-	UIDevice *dev = [UIDevice currentDevice];
-	NSString *udid = dev.uniqueIdentifier;
-	if (udid) {
-		if (UDID_LEN == strlen([udid cStringUsingEncoding:1])) {
-			strncpy(info->udid, [udid cStringUsingEncoding:1], UDID_LEN);
-			info->udid[UDID_LEN] = 0;
-		} else {
-			DLOG(@"Unexpected UDID length for '%@'.", udid);
-		}
-	} else {
-		DLOG(@"Couldn't read UDID.");
-	}
-
 	sysctlbyname("hw.machine", info->name, &size, 0, 0);
 	DLOG(@"Retrieved hardware string '%s'.", info->name);
 
diff --git a/src/controllers/Share_tab.m b/src/controllers/Share_tab.m
index 76fe6d8..74d40f3 100644
--- a/src/controllers/Share_tab.m
+++ b/src/controllers/Share_tab.m
@@ -271,10 +271,9 @@ - (NSString*)get_export_filename
 	Hardware_info *info = get_hardware_info();
 
 	NSString *ret = [NSString stringWithFormat:@"positions %04d-%02d-%02d "
-		@"%02d:%02d:%02d %s %s", [now year], [now month], [now day],
+		@"%02d:%02d:%02d %s", [now year], [now month], [now day],
 		[now hour], [now minute], [now second],
-		(info && info->name) ? (info->name) : ("unknown"),
-		(info && info->udid[0]) ? (info->udid) : ("no udid"), nil];
+		(info && info->name) ? (info->name) : ("unknown"), nil];
 
 	destroy_hardware_info(&info);
 	return ret;