diff --git a/cf/pthreads.m4 b/cf/pthreads.m4
index b86b0e34b..2df7b8ce5 100644
--- a/cf/pthreads.m4
+++ b/cf/pthreads.m4
@@ -29,9 +29,13 @@ case "$host" in
 	dnl heim_threads.h knows this
 	PTHREADS_LIBS="-lpthread"
 	;;
-*-*-freebsd[[56789]]*)
+*-*-freebsd[[56]]*)
 	native_pthread_support=yes
 	;;
+*-*-freebsd[[789]]*)
+	native_pthread_support=yes
+	PTHREADS_LIBADD="-lthr"
+	;;
 *-*-openbsd*)
 	native_pthread_support=yes
 	PTHREADS_CFLAGS=-pthread
@@ -81,10 +85,12 @@ if test "$enable_pthread_support" != no; then
 else
   PTHREADS_CFLAGS=""
   PTHREADS_LIBS=""
+  PTHREADS_LIBADD=""
 fi
 
 AC_SUBST(PTHREADS_CFLAGS)
 AC_SUBST(PTHREADS_LIBS)
+AC_SUBST(PTHREADS_LIBADD)
 
 AC_MSG_RESULT($enable_pthread_support)
 ])