diff --git a/hugin.spec b/hugin.spec
index 3e0c7f8..a15a9ef 100644
--- a/hugin.spec
+++ b/hugin.spec
@@ -1,4 +1,3 @@
-%undefine __cmake_in_source_build
 Summary: A panoramic photo stitcher and more
 Name: hugin
 Version: 2019.2.0