diff --git a/tools/binman/bintool.py b/tools/binman/bintool.py
index 7280ee4..81872db 100644
--- a/tools/binman/bintool.py
+++ b/tools/binman/bintool.py
@@ -329,7 +329,7 @@
 
     @classmethod
     def build_from_git(cls, git_repo, make_targets, bintool_path,
-            flags=None, git_branch=None):
+            flags=None, git_branch=None, make_path=None):
         """Build a bintool from a git repo
 
         This clones the repo in a temporary directory, builds it with 'make',
@@ -343,6 +343,8 @@
                 build is complete
             flags (list of str): Flags or variables to pass to make, or None
             git_branch (str): Branch of git repo, or None to use the default
+            make_path (str): Relative path inside git repo containing the
+                Makefile, or None
 
         Returns:
             tuple:
@@ -359,7 +361,10 @@
             tools.run('git', 'clone', '--depth', '1', git_repo, tmpdir)
         for target in make_targets:
             print(f"- build target '{target}'")
-            cmd = ['make', '-C', tmpdir, '-j', f'{multiprocessing.cpu_count()}',
+            makedir = tmpdir
+            if make_path:
+                makedir = os.path.join(tmpdir, make_path)
+            cmd = ['make', '-C', makedir, '-j', f'{multiprocessing.cpu_count()}',
                    target]
             if flags:
                 cmd += flags