diff --git a/lib/api/source/sync.php b/lib/api/source/sync.php
index f33d8b3..8bb9a10 100755
--- a/lib/api/source/sync.php
+++ b/lib/api/source/sync.php
@@ -10,7 +10,7 @@
 		$url = @file_get_contents(URL_CONF);
 
 		if( $url === false ){
-			slog("Cannot find server's api url", 'api:sync');
+			slog("Cannot find server's api url", 'api:sync','update');
 			return 127;
 		}
 
@@ -18,7 +18,7 @@
 		$hash = syscall(SOURCE_DIR.'/lib/cyclic-hash/hash');
 
 		if( strlen($hash) != 128 ){
-			slog("Wrong cyclic-hash:hash hash length (".strlen($hash).")", 'api:sync');
+			slog("Wrong cyclic-hash:hash hash length (".strlen($hash).")", 'api:sync','update');
 			return 127;
 		}
 
@@ -26,7 +26,7 @@
 		$new = syscall(SOURCE_DIR.'/lib/cyclic-hash/new');
 		
 		if( $new === false ){
-			slog("cyclic-hash:new returned $new EXIT_STATUS", 'api:sync');
+			slog("cyclic-hash:new returned $new EXIT_STATUS", 'api:sync','update');
 			return 127;
 		}
 
@@ -37,7 +37,7 @@
 		$data = json_decode(syscall(SOURCE_DIR.'/lib/api/fetch'));
 
 		if( is_null($data) ){
-			slog("api:fetch returned unreadable content", 'api:sync');
+			slog("api:fetch returned unreadable content", 'api:sync','update');
 			$data = [];
 		}
 		
@@ -99,7 +99,7 @@
 		
 		/* (3) Return response as result */
 		if( $response === false ){
-			slog("Request error", 'api:sync');
+			slog("Request error", 'api:sync','update');
 			return 127;
 		}
 
@@ -110,7 +110,7 @@
 		$decr = syscall(SOURCE_DIR.'/lib/cyclic-hash/decr');
 
 		if( $decr === false ){
-			slog("cyclic-hash:decr returned $decr EXIT_STATUS", 'api:sync');
+			slog("cyclic-hash:decr returned $decr EXIT_STATUS", 'api:sync','update');
 			return 127;
 		}
 
diff --git a/lib/cyclic-hash/source/decr.php b/lib/cyclic-hash/source/decr.php
index df1cb36..37ba7dc 100755
--- a/lib/cyclic-hash/source/decr.php
+++ b/lib/cyclic-hash/source/decr.php
@@ -40,10 +40,10 @@
 
 			// Try to override the secret file
 			if( @file_put_contents(SECRET_CONF, $secret) ){
-				slog("Random secret generated successfully", 'cyclic-hash:decr');
+				slog("Random secret generated successfully", 'cyclic-hash:decr', 'update');
 				return 0;
 			}else{
-				slog("Error while generating new random secret", 'cyclic-hash:decr');
+				slog("Error while generating new random secret", 'cyclic-hash:decr', 'update');
 				return 127;
 			}
 		}
@@ -63,10 +63,10 @@
 
 			/* (2) Try to override the secret file */
 			if( @file_put_contents(SECRET_CONF, "$key:$depth:$next") ){
-				slog("Secret depth decremented to $depth", 'cyclic-hash:decr');
+				slog("Secret depth decremented to $depth", 'cyclic-hash:decr', 'update');
 				return 0;
 			}else{
-				slog("Error while decrementing secret depth", 'cyclic-hash:decr');
+				slog("Error while decrementing secret depth", 'cyclic-hash:decr', 'update');
 				return 127;
 			}
 
@@ -80,10 +80,10 @@
 
 			// Try to override the secret file
 			if( @file_put_contents(SECRET_CONF, $secret) ){
-				slog("Random secret generated successfully", 'cyclic-hash:decr');
+				slog("Random secret generated successfully", 'cyclic-hash:decr', 'update');
 				return 0;
 			}else{
-				slog("Error while generating new random secret", 'cyclic-hash:decr');
+				slog("Error while generating new random secret", 'cyclic-hash:decr', 'update');
 				return 127;
 			}
 
diff --git a/lib/cyclic-hash/source/hash.php b/lib/cyclic-hash/source/hash.php
index b50c1c7..6de2c23 100755
--- a/lib/cyclic-hash/source/hash.php
+++ b/lib/cyclic-hash/source/hash.php
@@ -31,7 +31,7 @@
 			$hash = hash('sha512', $hash);
 
 
-		slog("Returning hash with $depth depth", 'cyclic-hash:hash');
+		slog("Returning hash with $depth depth", 'cyclic-hash:hash', 'update');
 		return $hash;
 
 	}
diff --git a/lib/cyclic-hash/source/new.php b/lib/cyclic-hash/source/new.php
index 8f8d18d..5de266c 100755
--- a/lib/cyclic-hash/source/new.php
+++ b/lib/cyclic-hash/source/new.php
@@ -14,7 +14,7 @@
 		
 		/* (2) Check secret file format */
 		if( !is_string($secret) || !preg_match("/^(.{".SECRET_SIZE."}):(\d+):(.{".SECRET_SIZE."})$/", $secret, $match) ){
-			slog("Error while reading secret", 'cyclic-hash:new');
+			slog("Error while reading secret", 'cyclic-hash:new', 'update');
 			return 127;
 		}
 
@@ -26,7 +26,7 @@
 
 		/* (4) Die if not token not changed */
 		if( $depth > 1 ){
-			slog("No new secret with $depth depth", 'cyclic-hash:new');
+			slog("No new secret with $depth depth", 'cyclic-hash:new', 'update');
 			return 0;
 		}
 		
@@ -40,7 +40,7 @@
 		for( $d = 0 ; $d < 1000 ; $d++ )
 			$newhash = hash('sha512', $newhash);
 
-		slog("New secret with $depth depth", 'cyclic-hash:new');
+		slog("New secret with $depth depth", 'cyclic-hash:new', 'update');
 		return $newhash;
 
 	}
diff --git a/lib/include/php/func b/lib/include/php/func
index 59dbc10..efddc46 100755
--- a/lib/include/php/func
+++ b/lib/include/php/func
@@ -21,7 +21,7 @@
 
 	/* [2] Log management
 	=========================================================*/
-	function slog($message="unknown error...", $feature="default", $flag="daemon"){
+	function slog($message="unknown error", $feature="main", $flag="daemon"){
 
 		file_put_contents(LOG_DIR."/$flag.log", time()." [$feature] $message\n", FILE_APPEND);