--- a/bin/log_uploader.py
+++ b/bin/log_uploader.py
@@ -287,17 +287,17 @@ if __name__ == "__main__":
                 if '-debug' in builder_path and '-debug' not in platform:
                     platform += "-debug"
 
             if options.trybuild:
                 uploadArgs.update(dict(
                     to_try=True,
                     to_tinderbox_dated=False,
                     who=getAuthor(build),
-                    revision=build.getProperty('revision')[:12],
+                    revision=build.getProperty('revision'),
                     builddir="%s-%s" % (options.branch, platform),
                 ))
             else:
                 buildid = getBuildId(build)
 
                 if options.release:
                     if 'mobile' in options.product:
                         uploadArgs['nightly_dir'] = 'candidates'