diff --git a/lib/n64-libc/n64-alloca.c b/lib/n64-libc/n64-alloca.c
index e69de29b..458afd70 100644
--- a/lib/n64-libc/n64-alloca.c
+++ b/lib/n64-libc/n64-alloca.c
@@ -0,0 +1,9 @@
+#include "n64-assert.h"
+
+#include "n64-stdlib.h"
+#include "n64-stdio.h"
+
+void __n64_assert_fail( const char *assertion, const char *file, unsigned int line, const char *fcn ) {
+	n64_printf( "%s:%u: %s: Assertion `%s' failed.\n", file, line, fcn, assertion );
+	n64_abort();
+}