diff --git a/opensm.spec b/opensm.spec
index 5da8fb6..8ae725b 100644
--- a/opensm.spec
+++ b/opensm.spec
@@ -20,8 +20,9 @@ Patch0:  opensm-3.3.17-prefix.patch
 Patch1:  opensm-3.3.18-man-fixes.patch
 
 BuildRequires: libibmad-devel >= 1.3.12, systemd, systemd-units
+BuildRequires: bison, flex, byacc
 %if %{__remake_config}
-BuildRequires: libtool, autoconf, autoheader, bison, flex, byacc
+BuildRequires: libtool, autoconf, autoheader
 %endif
 Requires: %{name}-libs%{?_isa} = %{version}-%{release}, logrotate, rdma
 Requires(post): systemd