diff --git a/adb/Android.mk b/adb/Android.mk
index 6d18d2657..e5bc539c5 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -22,8 +22,8 @@ LIBADB_SRC_FILES := \
     transport.c \
     transport_usb.c \
 
-LIBADB_C_FLAGS := \
-    -Wall -Werror \
+LIBADB_CFLAGS := \
+    -Wall -Werror -Wno-unused-parameter \
     -D_XOPEN_SOURCE -D_GNU_SOURCE \
     -fvisibility=hidden \
 
diff --git a/adb/adb_listeners.c b/adb/adb_listeners.c
index 76a03ebff..699f3f5fe 100644
--- a/adb/adb_listeners.c
+++ b/adb/adb_listeners.c
@@ -16,6 +16,8 @@
 
 #include "adb_listeners.h"
 
+#include <stdio.h>
+
 #include "sysdeps.h"
 
 int gListenAll = 0; /* Not static because it is used in commandline.c. */