diff --git a/bootstrap/coriolis2.spec.in b/bootstrap/coriolis2.spec.in
index c898b89e..af426553 100644
--- a/bootstrap/coriolis2.spec.in
+++ b/bootstrap/coriolis2.spec.in
@@ -59,7 +59,7 @@ Development files for the Coriolis 2 package.
          -D BUILD_DOC:STRING=OFF                       \
          -D CMAKE_INSTALL_PREFIX:STRING=%{coriolisTop} \
 %ifarch x86_64
-         -D LIB_SUFFIX:STRING=x86_64                   \
+         -D LIB_SUFFIX:STRING=64                       \
 %endif
          ../../$tool
    make DESTDIR=%{buildroot} %{_smp_mflags} install