diff --git a/tools/tinderbox-configs/sunbird/linux/tinder-config.pl b/tools/tinderbox-configs/sunbird/linux/tinder-config.pl
index 2603ea718c92..513d337e67c8 100644
--- a/tools/tinderbox-configs/sunbird/linux/tinder-config.pl
+++ b/tools/tinderbox-configs/sunbird/linux/tinder-config.pl
@@ -39,7 +39,7 @@ $ENV{CVS_RSH} = "ssh";
 #$BuildDebug        = 0;      # Debug or Opt (Darwin)
 #$ReportStatus      = 1;      # Send results to server, or not
 #$ReportFinalStatus = 1;      # Finer control over $ReportStatus.
-#$UseTimeStamp      = !;      # Use the CVS 'pull-by-timestamp' option, or not
+$UseTimeStamp      = 0;      # Use the CVS 'pull-by-timestamp' option, or not
 #$BuildOnce         = 0;      # Build once, don't send results to server
 #$TestOnly          = 0;      # Only run tests, don't pull/build
 #$BuildEmbed        = 0;      # After building seamonkey, go build embed app.
diff --git a/tools/tinderbox-configs/sunbird/macosx/tinder-config.pl b/tools/tinderbox-configs/sunbird/macosx/tinder-config.pl
index cd561da8a3ae..d243dcf51f8b 100755
--- a/tools/tinderbox-configs/sunbird/macosx/tinder-config.pl
+++ b/tools/tinderbox-configs/sunbird/macosx/tinder-config.pl
@@ -40,7 +40,7 @@ $BuildAdministrator = 'build@mozilla.org';
 #$BuildDebug        = 0;      # Debug or Opt (Darwin)
 #$ReportStatus      = 1;      # Send results to server, or not
 #$ReportFinalStatus = 1;      # Finer control over $ReportStatus.
-#$UseTimeStamp      = 1;      # Use the CVS 'pull-by-timestamp' option, or not
+$UseTimeStamp      = 0;      # Use the CVS 'pull-by-timestamp' option, or not
 #$BuildOnce         = 0;      # Build once, don't send results to server
 #$TestOnly          = 0;      # Only run tests, don't pull/build
 #$BuildEmbed        = 0;      # After building seamonkey, go build embed app.
diff --git a/tools/tinderbox-configs/sunbird/win32/tinder-config.pl b/tools/tinderbox-configs/sunbird/win32/tinder-config.pl
index 2efa99ccfffb..c2f3ae1146a9 100644
--- a/tools/tinderbox-configs/sunbird/win32/tinder-config.pl
+++ b/tools/tinderbox-configs/sunbird/win32/tinder-config.pl
@@ -50,7 +50,7 @@ $ENV{MOZ_PACKAGE_NSIS} = '1';
 #$BuildDebug        = 0;      # Debug or Opt (Darwin)
 #$ReportStatus      = 1;      # Send results to server, or not
 #$ReportFinalStatus = 1;      # Finer control over $ReportStatus.
-#$UseTimeStamp      = 1;      # Use the CVS 'pull-by-timestamp' option, or not
+$UseTimeStamp      = 0;      # Use the CVS 'pull-by-timestamp' option, or not
 #$BuildOnce         = 0;      # Build once, don't send results to server
 #$TestOnly          = 0;      # Only run tests, don't pull/build
 #$BuildEmbed        = 0;      # After building seamonkey, go build embed app.