diff --git a/include/libgourou.h b/include/libgourou.h
index ce9892e..dea43a0 100644
--- a/include/libgourou.h
+++ b/include/libgourou.h
@@ -40,7 +40,7 @@
 #define ACS_SERVER              "http://adeactivate.adobe.com/adept"
 #endif
 
-#define LIBGOUROU_VERSION       "0.4"
+#define LIBGOUROU_VERSION       "0.4.1"
 
 namespace gourou
 {
diff --git a/utils/acsmdownloader.cpp b/utils/acsmdownloader.cpp
index 9c915fc..ef55a0e 100644
--- a/utils/acsmdownloader.cpp
+++ b/utils/acsmdownloader.cpp
@@ -79,6 +79,8 @@ public:
 		std::string filename;
 		if (!outputFile)
 		    filename = std::string("Adobe_PrivateLicenseKey--") + user->getUsername() + ".der";
+		else
+		    filename = outputFile;
 	    
 		if (outputDir)
 		{
@@ -173,7 +175,7 @@ static void usage(const char* cmd)
 {
     std::cout << "Download EPUB file from ACSM request file" << std::endl;
     
-    std::cout << "Usage: " << cmd << " [(-d|--device-file) device.xml] [(-a|--activation-file) activation.xml] [(-s|--device-key-file) devicesalt] [(-O|--output-dir) dir] [(-o|--output-file) output(.epub|.pdf|.der)] [(-v|--verbose)] [(-h|--help)] (-f|--acsm-file) file.acsm|(-e|--export-private-key)" << std::endl << std::endl;
+    std::cout << "Usage: " << cmd << " [(-d|--device-file) device.xml] [(-a|--activation-file) activation.xml] [(-k|--device-key-file) devicesalt] [(-O|--output-dir) dir] [(-o|--output-file) output(.epub|.pdf|.der)] [(-v|--verbose)] [(-h|--help)] (-f|--acsm-file) file.acsm|(-e|--export-private-key)" << std::endl << std::endl;
     
     std::cout << "  " << "-d|--device-file"     << "\t"   << "device.xml file from eReader" << std::endl;
     std::cout << "  " << "-a|--activation-file" << "\t"   << "activation.xml file from eReader" << std::endl;