diff --git a/Makefile.am b/Makefile.am
index f9c89d64..eef812aa 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -130,6 +130,7 @@ unittest_sources = \
 	tests/unittests/xmpp/stub_xmpp.c \
 	tests/unittests/xmpp/stub_message.c \
 	tests/unittests/ui/stub_ui.c tests/unittests/ui/stub_ui.h \
+	tests/unittests/ui/stub_inputwin.c tests/unittests/ui/stub_inputwin.h \
 	tests/unittests/ui/stub_vcardwin.c \
 	tests/unittests/log/stub_log.c \
 	tests/unittests/chatlog/stub_chatlog.c \
diff --git a/tests/unittests/ui/stub_inputwin.c b/tests/unittests/ui/stub_inputwin.c
new file mode 100644
index 00000000..f4005bae
--- /dev/null
+++ b/tests/unittests/ui/stub_inputwin.c
@@ -0,0 +1,4 @@
+void
+inp_add_watch(void)
+{
+}
\ No newline at end of file
diff --git a/tests/unittests/ui/stub_inputwin.h b/tests/unittests/ui/stub_inputwin.h
new file mode 100644
index 00000000..a7535da4
--- /dev/null
+++ b/tests/unittests/ui/stub_inputwin.h
@@ -0,0 +1 @@
+void inp_add_watch(void);
\ No newline at end of file