diff --git a/build/jam/OptionalPackages b/build/jam/OptionalPackages
index 69fd31bd0a..339a9f86d2 100644
--- a/build/jam/OptionalPackages
+++ b/build/jam/OptionalPackages
@@ -204,15 +204,15 @@ if [ IsOptionalHaikuImagePackageAdded Clockwerk ] {
 	if $(TARGET_ARCH) != x86 {
 		Echo "No optional package Clockwerk available for $(TARGET_ARCH)" ;
 	} else if $(HAIKU_GCC_VERSION[1]) >= 4 {
-		InstallOptionalHaikuImagePackage Clockwerk-0.0.1-x86-gcc4-2009-08-04
-			: $(baseURL)/Clockwerk-0.0.1-x86-gcc4-2009-08-04.zip
+		InstallOptionalHaikuImagePackage Clockwerk-0.0.1-x86-gcc4-2009-08-06
+			: $(baseURL)/Clockwerk-0.0.1-x86-gcc4-2009-08-06.zip
 			:
 		;
 		AddSymlinkToHaikuImage home config be Applications
 			: /boot/apps/Clockwerk/Clockwerk ;
 	} else {
-		InstallOptionalHaikuImagePackage Clockwerk-0.0.1-x86-gcc2-2009-08-04
-			: $(baseURL)/Clockwerk-0.0.1-x86-gcc2-2009-08-04.zip
+		InstallOptionalHaikuImagePackage Clockwerk-0.0.1-x86-gcc2-2009-08-06
+			: $(baseURL)/Clockwerk-0.0.1-x86-gcc2-2009-08-06.zip
 			:
 		;
 		AddSymlinkToHaikuImage home config be Applications