diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
index 02442b9173..9d48c8e676 100644
--- a/src/conf/domain_addr.c
+++ b/src/conf/domain_addr.c
@@ -752,8 +752,8 @@ virDomainPCIAddressFindUnusedFunctionOnBus(virDomainPCIAddressBusPtr bus,
 static int ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2)
 virDomainPCIAddressGetNextAddr(virDomainPCIAddressSetPtr addrs,
                                virPCIDeviceAddressPtr next_addr,
-                               int function,
-                               virDomainPCIConnectFlags flags)
+                               virDomainPCIConnectFlags flags,
+                               int function)
 {
     /* default to starting the search for a free slot from
      * the first slot of domain 0 bus 0...
@@ -859,7 +859,7 @@ virDomainPCIAddressReserveNextAddr(virDomainPCIAddressSetPtr addrs,
 {
     virPCIDeviceAddress addr;
 
-    if (virDomainPCIAddressGetNextAddr(addrs, &addr, function, flags) < 0)
+    if (virDomainPCIAddressGetNextAddr(addrs, &addr, flags, function) < 0)
         return -1;
 
     if (virDomainPCIAddressReserveAddrInternal(addrs, &addr, flags, false) < 0)
diff --git a/src/conf/domain_addr.h b/src/conf/domain_addr.h
index a58890da6b..56448d43f0 100644
--- a/src/conf/domain_addr.h
+++ b/src/conf/domain_addr.h
@@ -145,6 +145,12 @@ int virDomainPCIAddressReserveAddr(virDomainPCIAddressSetPtr addrs,
                                    virDomainPCIConnectFlags flags)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
+int virDomainPCIAddressReserveNextAddr(virDomainPCIAddressSetPtr addrs,
+                                       virDomainDeviceInfoPtr dev,
+                                       virDomainPCIConnectFlags flags,
+                                       int function)
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+
 int virDomainPCIAddressEnsureAddr(virDomainPCIAddressSetPtr addrs,
                                   virDomainDeviceInfoPtr dev,
                                   virDomainPCIConnectFlags flags)
@@ -154,12 +160,6 @@ int virDomainPCIAddressReleaseAddr(virDomainPCIAddressSetPtr addrs,
                                    virPCIDeviceAddressPtr addr)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
-int virDomainPCIAddressReserveNextAddr(virDomainPCIAddressSetPtr addrs,
-                                       virDomainDeviceInfoPtr dev,
-                                       virDomainPCIConnectFlags flags,
-                                       int function)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
-
 void virDomainPCIAddressSetAllMulti(virDomainDefPtr def)
     ATTRIBUTE_NONNULL(1);