diff --git a/lib/rpc_backend b/lib/rpc_backend
index a62d4e7..38da50c 100644
--- a/lib/rpc_backend
+++ b/lib/rpc_backend
@@ -26,6 +26,8 @@
 # Make sure we only have one rpc backend enabled.
 # Also check the specified rpc backend is available on your platform.
 function check_rpc_backend {
+    local c svc
+
     local rpc_needed=1
     # We rely on the fact that filenames in lib/* match the service names
     # that can be passed as arguments to is_service_enabled.
@@ -138,6 +140,7 @@
         # NOTE(bnemec): Retry initial rabbitmq configuration to deal with
         # the fact that sometimes it fails to start properly.
         # Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1059028
+        local i
         for i in `seq 10`; do
             if is_fedora || is_suse; then
                 # service is not started by default