diff --git a/gdb/doc/z8000.m4 b/gdb/doc/z8000.m4
index 245c929921..99cefd6881 100644
--- a/gdb/doc/z8000.m4
+++ b/gdb/doc/z8000.m4
@@ -1,5 +1,5 @@
 _divert__(-1)
 _define__(<_Z8000__>,<1>)
 _define__(<_HOST__>,<Zilog Z8000>)
-_define__(<_MACH_DEP__>,<Z8000 Dependent>
+_define__(<_MACH_DEP__>,<Z8000 Dependent>)
 _divert__<>
\ No newline at end of file