plugin.c: constify

diff --git a/src/daemon/plugin.c b/src/daemon/plugin.c
index 788b454..e7993f1 100644 (file)
--- a/src/daemon/plugin.c
+++ b/src/daemon/plugin.c
@@ -1343,7 +1343,7 @@ static void plugin_flush_timeout_callback_free (void *data)
 
 static char *plugin_flush_callback_name (const char *name)
 {
-       char *flush_prefix = "flush/";
+       const char *flush_prefix = "flush/";
        size_t prefix_size;
        char *flush_name;
        size_t name_size;