diff --git a/tools/trace.py b/tools/trace.py
index 22333056b43d..e1845da18edd 100755
--- a/tools/trace.py
+++ b/tools/trace.py
@@ -216,17 +216,17 @@ def _parse_action(self, action):
         }
 
         aliases_indarg = {
-                "arg1": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM1(ctx);"
+                "arg1": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM1(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM1(_ctx))); _val;})",
-                "arg2": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM2(ctx);"
+                "arg2": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM2(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM2(_ctx))); _val;})",
-                "arg3": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM3(ctx);"
+                "arg3": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM3(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM3(_ctx))); _val;})",
-                "arg4": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM4(ctx);"
+                "arg4": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM4(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM4(_ctx))); _val;})",
-                "arg5": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM5(ctx);"
+                "arg5": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM5(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM5(_ctx))); _val;})",
-                "arg6": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM6(ctx);"
+                "arg6": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM6(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM6(_ctx))); _val;})",
         }