diff --git a/src/util/virpci.c b/src/util/virpci.c
index 3b5071824f..61a6b359e5 100644
--- a/src/util/virpci.c
+++ b/src/util/virpci.c
@@ -1744,7 +1744,7 @@ virPCIDeviceAddressEqual(const virPCIDeviceAddress *addr1,
 }
 
 char *
-virPCIDeviceAddressAsString(virPCIDeviceAddressPtr addr)
+virPCIDeviceAddressAsString(const virPCIDeviceAddress *addr)
 {
     char *str;
 
diff --git a/src/util/virpci.h b/src/util/virpci.h
index 4b00749151..5074851777 100644
--- a/src/util/virpci.h
+++ b/src/util/virpci.h
@@ -236,7 +236,7 @@ bool virPCIDeviceAddressIsEmpty(const virPCIDeviceAddress *addr);
 bool virPCIDeviceAddressEqual(const virPCIDeviceAddress *addr1,
                               const virPCIDeviceAddress *addr2);
 
-char *virPCIDeviceAddressAsString(virPCIDeviceAddressPtr addr)
+char *virPCIDeviceAddressAsString(const virPCIDeviceAddress *addr)
       ATTRIBUTE_NONNULL(1);
 
 int virPCIDeviceAddressParse(char *address, virPCIDeviceAddressPtr bdf);