diff --git a/test/err/staticassert-nomsg.c b/test/err/staticassert-nomsg.c
new file mode 100644
index 000000000..e0a1ede69
--- /dev/null
+++ b/test/err/staticassert-nomsg.c
@@ -0,0 +1,26 @@
+/*
+  Copyright 2020 the cc65 authors
+
+  This software is provided 'as-is', without any express or implied
+  warranty. In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/*
+** Test of failing _Static_assert.
+**/
+
+
+_Static_assert(0 == 1);