diff --git a/steps/manifest b/steps/manifest
index 91cc4555..3c2f63a7 100644
--- a/steps/manifest
+++ b/steps/manifest
@@ -30,7 +30,8 @@
 
 build: checksum-transcriber-1.0
 build: simple-patch-1.0
-build: mes-0.25
+build: mes-0.25 ( TCC_BOOTSTRAP_ALT == False )
+build: tcc_bootstrap_alt-0.1 ( TCC_BOOTSTRAP_ALT == True )
 build: tcc-0.9.26
 build: tcc-0.9.27
 define: BUILD_FIWIX = ( KERNEL_BOOTSTRAP == True || BUILD_KERNELS == True )