--- a/python/mozbuild/mozbuild/backend/visualstudio.py
+++ b/python/mozbuild/mozbuild/backend/visualstudio.py
@@ -256,16 +256,19 @@ class VisualStudioBackend(CommonBackend)
         # This is a Visual C++ Project type.
         project_type = '8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942'
 
         # Visual Studio seems to require this header.
         fh.write('Microsoft Visual Studio Solution File, Format Version %s\r\n' %
                  format_version)
         fh.write('# Visual Studio %s\r\n' % comment_version)
 
+        # Corresponds to VS2013.
+        fh.write('MinimumVisualStudioVersion = 12.0.31101.0\r\n')
+
         binaries_id = projects['target_binaries'][0]
 
         # Write out entries for each project.
         for key in sorted(projects):
             project_id, basename, name = projects[key]
             path = os.path.join(self._projsubdir, '%s.vcxproj' % basename)
 
             fh.write('Project("{%s}") = "%s", "%s", "{%s}"\r\n' % (