diff --git a/ppc64le-long-double/main.fmf b/ppc64le-long-double/main.fmf
index 02f25c5..cd4e68f 100644
--- a/ppc64le-long-double/main.fmf
+++ b/ppc64le-long-double/main.fmf
@@ -27,6 +27,10 @@ adjust:
   - enabled: false
     when: arch != ppc64le
 
+  - because: "glibc in RHEL older than 9 don't support IEEE 128bit doubles"
+    enabled: false
+    when: distro < rhel-9
+
   - require+:
     - gcc
     when: distro != fedora