diff --git a/package/putty/putty.mk b/package/putty/putty.mk
index ca86c47052..7603f693d1 100644
--- a/package/putty/putty.mk
+++ b/package/putty/putty.mk
@@ -11,6 +11,7 @@ PUTTY_SUBDIR = unix
 PUTTY_LICENSE = MIT
 PUTTY_LICENSE_FILES = LICENCE
 PUTTY_CONF_OPTS = --disable-gtktest
+PUTTY_CONF_ENV = CFLAGS="$(TARGET_CFLAGS) -Wno-error"
 
 ifeq ($(BR2_PACKAGE_LIBGTK2),y)
 PUTTY_CONF_OPTS += --with-gtk=2