diff --git a/libraries/common b/libraries/common
index fdc5693..606a5ce 100644
--- a/libraries/common
+++ b/libraries/common
@@ -139,7 +139,7 @@ function loadLibraries() {
 
 #-------------------------------------------------------------------------------
 # Saves specified message into a log file
-# Parameters: %message% %level%
+# Parameters: %message% [%level%]
 #-------------------------------------------------------------------------------
 function logMessage() {
 	local DATE MESSAGE TYPE
diff --git a/libraries/filesystem b/libraries/filesystem
index 09212c3..d5bdf12 100644
--- a/libraries/filesystem
+++ b/libraries/filesystem
@@ -19,7 +19,7 @@ function cleanTemp() {
 
 #-------------------------------------------------------------------------------
 # Downloads files into specified or current directory
-# Parameters: %url% %directory%
+# Parameters: %url% [%dest_directory%]
 #-------------------------------------------------------------------------------
 function download() {
 	local DEST FILENAME RESULT URL
@@ -75,7 +75,7 @@ function makeDirectory() {
 
 #-------------------------------------------------------------------------------
 # Creates a symbolic link between two files in specified target directory
-# Parameters: %source% %target%
+# Parameters: %source% %target_dir%
 #-------------------------------------------------------------------------------
 function makeLink() {
 	local DESTDIR OUTPUT RESULT
@@ -91,7 +91,7 @@ function makeLink() {
 
 #-------------------------------------------------------------------------------
 # Extracts any tar based archive into specified directory
-# Parameters: %tarball% %destination%
+# Parameters: %tarball% %dest_directory%
 #-------------------------------------------------------------------------------
 function unpack() {
 	local DST EXT OUTPUT RESULT SRC