diff --git a/tests/test_list_endpoints.c b/tests/test_list_endpoints.c
index d1d7603..d2fcdbf 100644
--- a/tests/test_list_endpoints.c
+++ b/tests/test_list_endpoints.c
@@ -2,8 +2,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#define ID_VENDOR 0x0951
-#define ID_PRODUCT 0x01666
+// arduino ID vendor and product
+#define ID_VENDOR 0x2341
+#define ID_PRODUCT 0x43
 
 // gcc file.c -l usb-1.0
 
@@ -26,8 +27,8 @@ int main(){
 		if(status != 0) continue;
 		
 		// search for device
-		if(desc.idVendor != 0x0951
-				|| desc.idProduct != 0x01666)
+		if(desc.idVendor != ID_VENDOR
+				|| desc.idProduct != ID_PRODUCT)
 			continue;
 
 		// open connection
@@ -56,20 +57,20 @@ int main(){
 		
 		// claim interfaces
 		for(int j=0; j<config_desc->bNumInterfaces; j++){
-			libusb_interface_descriptor *interface_desc = config_desc->interface[j].altsetting[0];
+			struct libusb_interface_descriptor interface_desc = config_desc->interface[j].altsetting[0];
 			
-			int interface = interface_desc->bInterfaceNumber;
+			int interface = interface_desc.bInterfaceNumber;
 			status = libusb_claim_interface(handle, interface);
 			if(status != 0){ perror("libusb_claim_interface"); exit(-1); }
 			
 			// find endpoints
-			for(int k=0; k<interface_desc->bNumEndpoints; k++){
-				libusb_endpoint_descriptor *endpoint_desc = interface_desc->endpoints[k];
+			for(int k=0; k<interface_desc.bNumEndpoints; k++){
+				struct libusb_endpoint_descriptor endpoint_desc = interface_desc.endpoint[k];
 				
 				// list endpoints bEndpointAddress and bmAttributes
 				printf("Endpoint inter. %d, num. %d\n", j, k);
-				printf("bEndpointAddress = 0x%x\n", endpoint_desc->bEndpointAddress);
-				printf("bmAttributes = 0x%x\n", endpoint_desc->bmAttributes);
+				printf("bEndpointAddress = 0x%x\n", endpoint_desc.bEndpointAddress);
+				printf("bmAttributes = 0x%x\n", endpoint_desc.bmAttributes);
 			}
 			
 			// release interfaces
--
libgit2 0.21.2