diff --git a/R-Rmpfr.spec b/R-Rmpfr.spec
index b5960bd..91f99e0 100644
--- a/R-Rmpfr.spec
+++ b/R-Rmpfr.spec
@@ -1,5 +1,5 @@
 # When we are bootstrapping, we drop some dependencies, and/or build time tests.
-%bcond_without bootstrap
+%bcond_with bootstrap
 
 %global packname Rmpfr
 %global packver  0.8