diff --git a/gas/doc/a29k.m4 b/gas/doc/a29k.m4
index cf3ba386c2..934fabe697 100644
--- a/gas/doc/a29k.m4
+++ b/gas/doc/a29k.m4
@@ -1,5 +1,5 @@
 _divert__(-1)
 _define__(<_AMD29K__>,<1>)
 _define__(<_HOST__>,<AMD 29K>)
-_define__(<_MACH_DEP__>,<AMD29K Dependent>
+_define__(<_MACH_DEP__>,<AMD29K-Dependent>
 _divert__<>
\ No newline at end of file
diff --git a/gas/doc/i80386.m4 b/gas/doc/i80386.m4
index d8293d1479..f578887e24 100644
--- a/gas/doc/i80386.m4
+++ b/gas/doc/i80386.m4
@@ -1,5 +1,5 @@
 _divert__(-1)
 _define__(<_I80386__>,<1>)
 _define__(<_HOST__>,<Intel 80386>)
-_define__(<_MACH_DEP__>,<80386 Dependent>
+_define__(<_MACH_DEP__>,<i386-Dependent>
 _divert__<>
\ No newline at end of file
diff --git a/gas/doc/i960.m4 b/gas/doc/i960.m4
index e98155df6c..f94060e46f 100644
--- a/gas/doc/i960.m4
+++ b/gas/doc/i960.m4
@@ -8,5 +8,5 @@ _define__(<_GCC__>,<gcc960>)
 _define__(<_LD__>,<gld960>)
 _define__(<_GDB__>,<gdb960>)
 _define__(<_HOST__>,<Intel 960>)
-_define__(<_MACH_DEP__>,<i960 Dependent>)
+_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 e5f83b6f11..752d5b6910 100644
--- a/gas/doc/m680x0.m4
+++ b/gas/doc/m680x0.m4
@@ -1,5 +1,5 @@
 _divert__(-1)
 _define__(<_M680X0__>,<1>)
 _define__(<_HOST__>,<Motorola 680x0>)
-_define__(<_MACH_DEP__>,<M680x0 Dependent>)
+_define__(<_MACH_DEP__>,<M68K-Dependent>)
 _divert__<>
\ No newline at end of file
diff --git a/gas/doc/sparc.m4 b/gas/doc/sparc.m4
index 8cc6a3e46d..9b47db4f0d 100644
--- a/gas/doc/sparc.m4
+++ b/gas/doc/sparc.m4
@@ -1,5 +1,5 @@
 _divert__(-1)
 _define__(<_SPARC__>,<1>)
 _define__(<_HOST__>,<SPARC>)
-_define__(<_MACH_DEP__>,<SPARC Dependent>)
+_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 59cb2ab126..76cb443cdb 100644
--- a/gas/doc/vax.m4
+++ b/gas/doc/vax.m4
@@ -1,5 +1,5 @@
 _divert__(-1)
 _define__(<_VAX__>,<1>)
 _define__(<_HOST__>,<VAX>)
-_define__(<_MACH_DEP__>,<VAX Dependent>)
+_define__(<_MACH_DEP__>,<VAX-Dependent>)
 _divert__<>
\ No newline at end of file