diff --git a/Regression/testsuite/main.fmf b/Regression/testsuite/main.fmf
index d012b78..4cde14b 100644
--- a/Regression/testsuite/main.fmf
+++ b/Regression/testsuite/main.fmf
@@ -38,7 +38,11 @@ adjust:
     continue: false
     because: known to fail, won't be fixed (RHBZ#2040688 and others)
   - enabled: false
-    when: collection == gcc-toolset-11, gcc-toolset-12 and distro == rhel-9 and distro > rhel-9.2
+    when: collection == gcc-toolset-11
+    continue: false
+    because: known to fail on some older RHELs
+  - enabled: false
+    when: collection == gcc-toolset-12 and distro == rhel-9 and distro > rhel-9.2
     continue: false
     because: known to fail with Clang > 15
 extra-nitrate: TC#0590691