1 files changed, 4 insertions, 1 deletions

diff --git a/include/litmus/rt_param.h b/include/litmus/rt_param.h
index e26535b32bd1..060b5d745213 100644
--- a/include/litmus/rt_param.h
+++ b/include/litmus/rt_param.h
@@ -249,7 +249,10 @@ struct rt_param {
         volatile int            linked_on;
 
         /* PFAIR/PD^2 state. Allocated on demand. */
-        struct pfair_param*     pfair;
+        union {
+                void *plugin_state;
+                struct pfair_param *pfair;
+        };
 
         /* Fields saved before BE->RT transition.
          */