diff --git a/tests/avocado/tcg_plugins.py b/tests/avocado/tcg_plugins.py
index 9ca1515c3b..642d2e49e3 100644
--- a/tests/avocado/tcg_plugins.py
+++ b/tests/avocado/tcg_plugins.py
@@ -131,7 +131,7 @@ class PluginKernelNormal(PluginKernelBase):
                                                  suffix=".log")
 
         self.run_vm(kernel_path, kernel_command_line,
-                    "tests/plugin/libmem.so,arg=both", plugin_log.name,
+                    "tests/plugin/libmem.so,inline=true,callback=true", plugin_log.name,
                     console_pattern,
                     args=('-icount', 'shift=1'))