diff --git a/lib/ippool.c b/lib/ippool.c
index 1729ec7..b1b242d 100644
--- a/lib/ippool.c
+++ b/lib/ippool.c
@@ -295,6 +295,7 @@
 		in46a_inc(&addr);
 
 		(*this)->member[i].inuse = 0;
+		(*this)->member[i].pool = *this;
 
 		/* Insert into list of unused */
 		(*this)->member[i].prev = (*this)->lastdyn;
@@ -315,6 +316,7 @@
 		struct in46_addr *i6al = &(*this)->member[i].addr;
 		memset(i6al, 0, sizeof(*i6al));
 		(*this)->member[i].inuse = 0;
+		(*this)->member[i].pool = *this;
 
 		/* Insert into list of unused */
 		(*this)->member[i].prev = (*this)->laststat;