diff --git a/gcc-toolset-15-gcc.spec b/gcc-toolset-15-gcc.spec
index 4b177f1..b2f20c6 100644
--- a/gcc-toolset-15-gcc.spec
+++ b/gcc-toolset-15-gcc.spec
@@ -1037,11 +1037,13 @@ CONFIGURE_OPTS="\
 %if 0%{?rhel} > 8
 %if 0%{?rhel} >= 10
        --with-arch=z14 --with-tune=z16 \
-%elif 0%{?rhel} >= 9
+%else
+%if 0%{?rhel} == 9
 	--with-arch=z14 --with-tune=z15 \
 %else
 	--with-arch=z13 --with-tune=arch13 \
 %endif
+%endif
 %else
 	--with-arch=z13 --with-tune=z14 \
 %endif