diff --git a/src/cdc_enumerate.c b/src/cdc_enumerate.c
index b05795fc..2626c89f 100644
--- a/src/cdc_enumerate.c
+++ b/src/cdc_enumerate.c
@@ -106,7 +106,7 @@ const char hidDescriptor[] = {
 #endif
 
 #ifndef USB_POWER_MA
-#define USB_POWER_MA 500
+#define USB_POWER_MA 100
 #endif
 __attribute__((__aligned__(4)))
 char cfgDescriptor[] = {