diff --git a/source-builder/sb/linux.py b/source-builder/sb/linux.py
index 67e2d47..a47d24a 100644
--- a/source-builder/sb/linux.py
+++ b/source-builder/sb/linux.py
@@ -43,27 +43,28 @@ def load():
         if cpus > 0:
             smp_mflags = '-j%d' % (cpus)
     defines = {
-        '_os':          ('none',    'none',     'linux'),
-        '_host':        ('triplet', 'required', uname[4] + '-linux-gnu'),
-        '_host_vendor': ('none',    'none',     'gnu'),
-        '_host_os':     ('none',    'none',     'linux'),
-        '_host_cpu':    ('none',    'none',     uname[4]),
-        '_host_alias':  ('none',    'none',     '%{nil}'),
-        '_host_arch':   ('none',    'none',     uname[4]),
-        '_usr':         ('dir',     'required', '/usr'),
-        '_var':         ('dir',     'required', '/var'),
-        'optflags':     ('none',    'none',     '-O2 -pipe'),
-        '_smp_mflags':  ('none',    'none',     smp_mflags),
-        '__bzip2':      ('exe',     'required', '/usr/bin/bzip2'),
-        '__gzip':       ('exe',     'required', '/bin/gzip'),
-        '__tar':        ('exe',     'required', '/bin/tar')
+        '_os':            ('none',    'none',     'linux'),
+        '_host':          ('triplet', 'required', uname[4] + '-linux-gnu'),
+        '_host_vendor':   ('none',    'none',     'gnu'),
+        '_host_os':       ('none',    'none',     'linux'),
+        '_host_cpu':      ('none',    'none',     uname[4]),
+        '_host_alias':    ('none',    'none',     '%{nil}'),
+        '_host_arch':     ('none',    'none',     uname[4]),
+        '_usr':           ('dir',     'required', '/usr'),
+        '_var':           ('dir',     'required', '/var'),
+        'optflags':       ('none',    'none',     '-O2 -pipe'),
+        '_smp_mflags':    ('none',    'none',     smp_mflags),
+        '__bzip2':        ('exe',     'required', '/usr/bin/bzip2'),
+        '__gzip':         ('exe',     'required', '/bin/gzip'),
+        '__tar':          ('exe',     'required', '/bin/tar')
         }
     variations = {
-        '__bzip2':      ('exe',     'required', '/bin/bzip2'),
-	'__chgrp':      ('exe',     'required', '/bin/chgrp'),
-	'__chown':      ('exe',     'required', '/bin/chown'),
-	'__grep':       ('exe',     'required', '/bin/grep'),
-	'__sed':        ('exe',     'required', '/bin/sed')
+        '__bzip2':        ('exe',     'required', '/bin/bzip2'),         # Ubuntu
+	'__chgrp':        ('exe',     'required', '/bin/chgrp'),         # Ubuntu
+	'__chown':        ('exe',     'required', '/bin/chown'),         # Ubuntu
+	'__grep':         ('exe',     'required', '/bin/grep'),          # Ubuntu
+	'__sed':          ('exe',     'required', '/bin/sed'),           # Ubuntu
+	'__install_info': ('exe',     'required', '/sbin/install-info')  # Fedora
         }
     for v in variations:
         if path.exists(variations[v][2]):