diff --git a/airrac.spec b/airrac.spec
index 0e1ff01..ede78b4 100644
--- a/airrac.spec
+++ b/airrac.spec
@@ -1,4 +1,5 @@
 #
+%global _smp_mflags -j1
 %global mydocs __tmp_docdir
 #
 Name:           airrac