diff --git a/src/lib/comm.rs b/src/lib/comm.rs
index 841afaa9797..ca303365435 100644
--- a/src/lib/comm.rs
+++ b/src/lib/comm.rs
@@ -44,7 +44,6 @@ native "cdecl" mod rustrt {
 
     fn new_port(unit_sz: uint) -> *rust_port;
     fn del_port(po: *rust_port);
-    fn drop_port(po: *rust_port);
     fn get_port_id(po: *rust_port) -> port_id;
 }
 
@@ -77,7 +76,6 @@ tag chan<uniq T> {
 }
 
 resource port_ptr(po: *rustrt::rust_port) {
-    rustrt::drop_port(po);
     rustrt::del_port(po);
 }
 
diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index 3b69fcf9466..30b915f4e96 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -479,10 +479,6 @@ get_port_id(rust_port *port) {
     return port->id;
 }
 
-extern "C" CDECL
-void drop_port(rust_port *port) {
-}
-
 extern "C" CDECL void
 chan_id_send(type_desc *t, rust_task_id target_task_id,
              rust_port_id target_port_id, void *sptr) {
diff --git a/src/rt/rustrt.def.in b/src/rt/rustrt.def.in
index b5546d356c3..13a39471b5d 100644
--- a/src/rt/rustrt.def.in
+++ b/src/rt/rustrt.def.in
@@ -10,7 +10,6 @@ debug_ptrcast
 debug_tag
 debug_tydesc
 do_gc
-drop_port
 drop_task
 get_port_id
 get_task_id