diff --git a/source-builder/config/gcc-common-1.cfg b/source-builder/config/gcc-common-1.cfg
index 4e51d2e..4943fa3 100644
--- a/source-builder/config/gcc-common-1.cfg
+++ b/source-builder/config/gcc-common-1.cfg
@@ -165,7 +165,7 @@ BuildRoot: %{_tmppath}/%{name}-root-%(%{__id_u} -n)
     %{?with_plugin:--enable-plugin}%{!?with_plugin:--disable-plugin} \
     %{?enable_obsolete:--enable-obsolete} \
     --enable-languages="$languages" \
-    %{gcc_configure_extra_options}
+    %{?gcc_configure_extra_options:%{gcc_configure_extra_options}}
 
   if test "%_host" != "%_build" ; then
     # Bug in gcc-3.2.1: