diff -r ce8fecc9847d -r 3c2ed7a7a5fd src/server/pblock.h
--- a/src/server/pblock.h	Tue Dec 27 20:12:21 2011 +0100
+++ b/src/server/pblock.h	Wed Dec 28 10:57:36 2011 +0100
@@ -341,6 +341,8 @@
 }
 #endif
 
+#define PARAM_KEY(pp) *(const pb_key **)(pp + 1) /* new */
+
 NSPR_END_EXTERN_C
 
 #define param_create INTparam_create