diff --git a/README.md b/README.md
index 1e78bdf..c86ead8 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
+[![Build Status](https://build.jcktrue.dk/api/badges/jct/ledcontroller-3bit/status.svg)](https://build.jcktrue.dk/jct/ledcontroller-3bit)
 # ledcontroller-3bit #
 
 A Linux command line utility to control usb mail notifiers identified as:
@@ -27,9 +28,8 @@ For example the script `mled-cputemp` will make it respond to your CPU's tempera
 
     $ sudo rm /usr/bin/ledcontroller
     
-### Have fun: ###
+### Have fun ###
 
-Take a look inside the _scripts_ directory.
 
 ## Requisites: ##
 
diff --git a/main.c b/main.c
index 00e2364..81f9340 100644
--- a/main.c
+++ b/main.c
@@ -97,22 +97,22 @@ int main(int argc, char **argv)
     } else if (strcmp(argv[1], "white") == 0) {
 	code = 7;
     } else {
-	printf("invalid color\n");
+	puts("Invalid color");
 	return -1;
     }
 
     libusb_init(NULL);
     devh = libusb_open_device_with_vid_pid(NULL, VID, PID);
     if (devh == NULL) {
-	printf("not found\n");
+	puts("Device not found");
 	return -1;
     }
 
     if (libusb_kernel_driver_active(devh, 0)) {
-	printf("detach from kernel\n");
+	puts("Detach driver from kernel");
 	ret = libusb_detach_kernel_driver(devh, 0);
 	if (ret < 0) {
-	    printf("can't detach\n");
+	    puts("Could not detach driver");
 	    return -1;
 	}
     }
@@ -128,7 +128,8 @@ int main(int argc, char **argv)
     libusb_claim_interface(devh, 0);
     ret = libusb_interrupt_transfer(devh, 0x2, data, 5, &dummy, 0);
     if (ret < 0) {
-	perror("error");
+	perror("libusb error");
+	return -1;
     }