diff --git a/src/parisc/parisc.c b/src/parisc/parisc.c
index bd7ae79..d1021e5 100644
--- a/src/parisc/parisc.c
+++ b/src/parisc/parisc.c
@@ -372,7 +372,7 @@
     struct pci_device *pci;
     int i;
 
-    #define DO(x) if (hpa == x) return #x;
+    #define DO(x) if (hpa == F_EXTEND(x)) return #x;
     DO(GSC_HPA)
     DO(DINO_HPA)
     DO(DINO_UART_HPA)