diff --git a/contrib/crossrpms/gcc/build.add b/contrib/crossrpms/gcc/build.add
index 01cca9298f..d12fc1e1c6 100644
--- a/contrib/crossrpms/gcc/build.add
+++ b/contrib/crossrpms/gcc/build.add
@@ -60,7 +60,7 @@
   cp ../gcc-%{gcc_pkgvers}/gcc/gsyslimits.h gcc/include/syslimits.h
 %endif
 
-  make all
+  make %{?_smp_mflags} all
 %if %build_infos
   make info
 %endif