diff --git a/src/conf/nwfilter_conf.c b/src/conf/nwfilter_conf.c
index 3456b7790c..c009921b42 100644
--- a/src/conf/nwfilter_conf.c
+++ b/src/conf/nwfilter_conf.c
@@ -2634,8 +2634,7 @@ cleanup:
 
 
 static virNWFilterDefPtr
-virNWFilterDefParse(virConnectPtr conn ATTRIBUTE_UNUSED,
-                    const char *xmlStr,
+virNWFilterDefParse(const char *xmlStr,
                     const char *filename) {
     virNWFilterDefPtr def = NULL;
     xmlDocPtr xml;
@@ -2650,18 +2649,16 @@ virNWFilterDefParse(virConnectPtr conn ATTRIBUTE_UNUSED,
 
 
 virNWFilterDefPtr
-virNWFilterDefParseString(virConnectPtr conn,
-                          const char *xmlStr)
+virNWFilterDefParseString(const char *xmlStr)
 {
-    return virNWFilterDefParse(conn, xmlStr, NULL);
+    return virNWFilterDefParse(xmlStr, NULL);
 }
 
 
 virNWFilterDefPtr
-virNWFilterDefParseFile(virConnectPtr conn,
-                        const char *filename)
+virNWFilterDefParseFile(const char *filename)
 {
-    return virNWFilterDefParse(conn, NULL, filename);
+    return virNWFilterDefParse(NULL, filename);
 }
 
 
@@ -3056,7 +3053,7 @@ virNWFilterObjLoad(virConnectPtr conn,
     virNWFilterDefPtr def;
     virNWFilterObjPtr nwfilter;
 
-    if (!(def = virNWFilterDefParseFile(conn, path))) {
+    if (!(def = virNWFilterDefParseFile(path))) {
         return NULL;
     }
 
diff --git a/src/conf/nwfilter_conf.h b/src/conf/nwfilter_conf.h
index 5d04cff890..faa752707a 100644
--- a/src/conf/nwfilter_conf.h
+++ b/src/conf/nwfilter_conf.h
@@ -713,10 +713,8 @@ int virNWFilterLoadAllConfigs(virConnectPtr conn,
 char *virNWFilterConfigFile(const char *dir,
                             const char *name);
 
-virNWFilterDefPtr virNWFilterDefParseString(virConnectPtr conn,
-                                            const char *xml);
-virNWFilterDefPtr virNWFilterDefParseFile(virConnectPtr conn,
-                                          const char *filename);
+virNWFilterDefPtr virNWFilterDefParseString(const char *xml);
+virNWFilterDefPtr virNWFilterDefParseFile(const char *filename);
 
 void virNWFilterObjLock(virNWFilterObjPtr obj);
 void virNWFilterObjUnlock(virNWFilterObjPtr obj);
diff --git a/src/nwfilter/nwfilter_driver.c b/src/nwfilter/nwfilter_driver.c
index 1ed28a2ac2..c2afdfc812 100644
--- a/src/nwfilter/nwfilter_driver.c
+++ b/src/nwfilter/nwfilter_driver.c
@@ -566,7 +566,7 @@ nwfilterDefineXML(virConnectPtr conn,
     nwfilterDriverLock(driver);
     virNWFilterCallbackDriversLock();
 
-    if (!(def = virNWFilterDefParseString(conn, xml)))
+    if (!(def = virNWFilterDefParseString(xml)))
         goto cleanup;
 
     if (virNWFilterDefineXMLEnsureACL(conn, def) < 0)
diff --git a/tests/nwfilterxml2xmltest.c b/tests/nwfilterxml2xmltest.c
index 84e61da1b1..14191a676a 100644
--- a/tests/nwfilterxml2xmltest.c
+++ b/tests/nwfilterxml2xmltest.c
@@ -36,7 +36,7 @@ testCompareXMLToXMLFiles(const char *inxml, const char *outxml,
 
     virResetLastError();
 
-    if (!(dev = virNWFilterDefParseString(NULL, inXmlData))) {
+    if (!(dev = virNWFilterDefParseString(inXmlData))) {
         if (expect_error) {
             virResetLastError();
             goto done;