diff --git a/tycho.spec b/tycho.spec
index c828095..a65445c 100644
--- a/tycho.spec
+++ b/tycho.spec
@@ -9,7 +9,7 @@
 # Tycho such that it can build a bootstrap mode Eclipse and subsequently
 # fully rebuild itself. In this mode, there may be reduced functionality,
 # so a full non-bootstrap mode build should always be done afterwards.
-%bcond_without bootstrap
+%bcond_with bootstrap
 
 # Allow conditionally building without Junit 5 support
 %bcond_with junit5