diff --git a/qa/069 b/qa/069
index 9f0769f..d5410c3 100755
--- a/qa/069
+++ b/qa/069
@@ -237,9 +237,11 @@ echo "expect two access control errors:"
 # the purposes of this test, so ...
 pminfo -f pmcd.numclients 2>&1 \
 | sed -e 's/"'$LOCALHOST'"/"LOCALHOST"/' \
+      -e 's/"'local:'"/"LOCALHOST"/' \
       -e 's/Connection reset by peer/No permission to perform requested operation/'
 pminfo -f pmcd.numclients 2>&1 \
 | sed -e 's/"'$LOCALHOST'"/"LOCALHOST"/' \
+      -e 's/"'local:'"/"LOCALHOST"/' \
       -e 's/Connection reset by peer/No permission to perform requested operation/'
 echo
 
diff --git a/qa/075 b/qa/075
index ef606e9..737de9b 100755
--- a/qa/075
+++ b/qa/075
@@ -47,7 +47,9 @@ _cmd()
 	    exit 1
 	    ;;
     esac \
-    | sed -e 's/Permission denied/No permission to perform requested operation/'
+    | sed \
+	-e 's/Permission denied/No permission to perform requested operation/' \
+	-e 's/local:$/localhost/'
 }
 
 rm -f $seq.out
diff --git a/src/libpcp/src/auxconnect.c b/src/libpcp/src/auxconnect.c
index 44f9df9..cd19264 100644
--- a/src/libpcp/src/auxconnect.c
+++ b/src/libpcp/src/auxconnect.c
@@ -56,6 +56,13 @@ __pmSockAddrIsLoopBack(const __pmSockAddr *addr)
     __pmSockAddr *loopBackAddr;
 
     family = __pmSockAddrGetFamily(addr);
+#if defined(HAVE_STRUCT_SOCKADDR_UN)
+    /* What we need to know here, is "is this the localhost?",
+     * which it always is, in the case of Unix domain sockets.
+     */
+    if (family == AF_UNIX)
+	return 1;
+#endif
     loopBackAddr = __pmLoopBackAddress(family);
     if (loopBackAddr == NULL)
         return 0;