diff --git a/lib/gdbcommand.py b/lib/gdbcommand.py
index 0f89502..ea33c2e 100644
--- a/lib/gdbcommand.py
+++ b/lib/gdbcommand.py
@@ -89,7 +89,7 @@ class GdbCatSumfileCommand(steps.ShellCommand):
             # This takes care of our very first build.
             if istry:
                 parser.write_try_build_sum_file (cur_results, builder, branch,
-                                                 rev, 0)
+                                                 rev, "0")
             else:
                 parser.write_sum_file (cur_results, builder, branch, rev, istry)
             # If there was no previous baseline, then this run
@@ -111,7 +111,7 @@ class GdbCatSumfileCommand(steps.ShellCommand):
             # This takes care of our very first build.
             if istry:
                 parser.write_try_build_sum_file (cur_results, builder, branch,
-                                                 rev, 0)
+                                                 rev, "0")
             else:
                 parser.write_sum_file (cur_results, builder, branch, rev, istry)
             # If there was no previous baseline, then this run
diff --git a/lib/sumfiles.py b/lib/sumfiles.py
index d220adc..6d95fb8 100644
--- a/lib/sumfiles.py
+++ b/lib/sumfiles.py
@@ -98,7 +98,7 @@ class DejaResults(object):
     def write_sum_file(self, sum_dict, builder, branch, rev, istry, try_count = "0"):
         if istry:
             self.write_try_build_sum_file (self, sum_dict, builder, branch, rev,
-                                           try_count = try_count)
+                                           try_count = str (try_count))
         else:
             self._write_sum_file (sum_dict, builder, rev, 'gdb.sum', istry = False,
                                   branch = branch)
@@ -108,7 +108,7 @@ class DejaResults(object):
                               header = "### THIS SUM FILE WAS GENERATED BY A TRY BUILD ###\n\n",
                               istry = True,
                               branch = branch,
-                              try_count = try_count)
+                              try_count = str (try_count))
 
     def write_baseline(self, sum_dict, builder, branch, rev, istry):
         if istry: