diff --git a/xapian-core.spec b/xapian-core.spec
index e8f56e6..c5c79dd 100644
--- a/xapian-core.spec
+++ b/xapian-core.spec
@@ -49,7 +49,7 @@ files needed for building packages which use Xapian
 # that doesn't matter here as we don't package it.
 autoreconf --force
 %configure --disable-static
-make
+make %{?_smp_mflags}
 
 %install
 rm -rf %{buildroot}