diff --git a/dev/ns_gige.cc b/dev/ns_gige.cc
index 7e7fedc15..0537c344a 100644
--- a/dev/ns_gige.cc
+++ b/dev/ns_gige.cc
@@ -127,7 +127,7 @@ NSGigE::NSGigE(Params *p)
                                                  p->header_bus, 1,
                                                  p->dma_no_allocate);
     } else if (p->payload_bus) {
-        pioInterface = newPioInterface(name() + ".pio2", p->hier,
+        pioInterface = newPioInterface(name() + ".pio", p->hier,
                                        p->payload_bus, this,
                                        &NSGigE::cacheAccess);
 
diff --git a/dev/sinic.cc b/dev/sinic.cc
index 0619a63dd..5aa111c44 100644
--- a/dev/sinic.cc
+++ b/dev/sinic.cc
@@ -94,8 +94,8 @@ Device::Device(Params *p)
     reset();
 
     if (p->io_bus) {
-        pioInterface = newPioInterface(p->name, p->hier, p->io_bus, this,
-                                       &Device::cacheAccess);
+        pioInterface = newPioInterface(p->name + ".pio", p->hier, p->io_bus,
+                                       this, &Device::cacheAccess);
 
         pioLatency = p->pio_latency * p->io_bus->clockRate;