diff --git a/gas/doc/i960.m4 b/gas/doc/i960.m4
index a5367f84d8..bfc2a0bb5d 100644
--- a/gas/doc/i960.m4
+++ b/gas/doc/i960.m4
@@ -1,4 +1,5 @@
 _divert__(-1)
 _define__(<_I960__>,<1>)
 _define__(<_AS__>,<gas960>)
+_define__(<_MACH_DEP__>,<i960 Dependent>)
 _divert__<>
\ No newline at end of file
diff --git a/gas/doc/m680x0.m4 b/gas/doc/m680x0.m4
index 93f96548c1..ff69787700 100644
--- a/gas/doc/m680x0.m4
+++ b/gas/doc/m680x0.m4
@@ -1,3 +1,4 @@
 _divert__(-1)
 _define__(<_M680X0__>,<1>)
+_define__(<_MACH_DEP__>,<M680x0 Dependent>)
 _divert__<>
\ No newline at end of file
diff --git a/gas/doc/sparc.m4 b/gas/doc/sparc.m4
index 6e2e6d914c..dc783d781d 100644
--- a/gas/doc/sparc.m4
+++ b/gas/doc/sparc.m4
@@ -1,3 +1,4 @@
 _divert__(-1)
 _define__(<_SPARC__>,<1>)
+_define__(<_MACH_DEP__>,<SPARC Dependent>)
 _divert__<>
\ No newline at end of file
diff --git a/gas/doc/vax.m4 b/gas/doc/vax.m4
index 478c885899..9fd957b781 100644
--- a/gas/doc/vax.m4
+++ b/gas/doc/vax.m4
@@ -1,3 +1,4 @@
 _divert__(-1)
 _define__(<_VAX__>,<1>)
+_define__(<_MACH_DEP__>,<VAX Dependent>)
 _divert__<>
\ No newline at end of file