diff --git a/SPECS/softhsm.spec b/SPECS/softhsm.spec
index 8963840..22b7a55 100644
--- a/SPECS/softhsm.spec
+++ b/SPECS/softhsm.spec
@@ -36,9 +36,9 @@ with other cryptographic products because of the PKCS#11 interface.
 Summary: Development package of softhsm that includes the header files
 Group: Development/Libraries
 Requires: %{name} = %{version}-%{release}, openssl-devel, sqlite-devel
-#if 0%{?prever:1}
+%if 0%{?prever:!} || 0%{?rebuild_ac}
 BuildRequires: autoconf, libtool, automake
-#endif
+%endif
 
 %description devel
 The devel package contains the libsofthsm include files