diff --git a/crash.spec b/crash.spec
index 93b280a..7cea0c4 100644
--- a/crash.spec
+++ b/crash.spec
@@ -287,8 +287,8 @@ export CFLAGS="$RPM_OPT_FLAGS -fno-builtin-memset -fno-strict-aliasing -mfull-to
 export CFLAGS="$RPM_OPT_FLAGS -fno-builtin-memset -fno-strict-aliasing"
 %endif
 export GDB="gdb-%{gdb_version}"
-make RPMPKG="`cat .rh_rpm_package`" %{?jobs:-j%jobs}
-make extensions %{?jobs:-j%jobs}
+%make_build RPMPKG="`cat .rh_rpm_package`"
+%make_build extensions
 %if 0%{?build_kmp}
 export EXTRA_CFLAGS='-DVERSION=\"%version\"'
 for flavor in %flavors_to_build; do