diff --git a/panda/plugins/callstack_instr/callstack_instr.cpp b/panda/plugins/callstack_instr/callstack_instr.cpp
index b6b6dc10b8a..ee23121c8aa 100644
--- a/panda/plugins/callstack_instr/callstack_instr.cpp
+++ b/panda/plugins/callstack_instr/callstack_instr.cpp
@@ -594,9 +594,9 @@ bool init_plugin(void *self) {
     pcb.after_block_translate = after_block_translate;
     panda_register_callback(self, PANDA_CB_AFTER_BLOCK_TRANSLATE, pcb);
     pcb.end_block_exec = end_block_exec;
-    panda_register_callback(self, PANDA_CB_AFTER_BLOCK_EXEC, pcb);
+    panda_register_callback(self, PANDA_CB_END_BLOCK_EXEC, pcb);
     pcb.start_block_exec = start_block_exec;
-    panda_register_callback(self, PANDA_CB_BEFORE_BLOCK_EXEC, pcb);
+    panda_register_callback(self, PANDA_CB_START_BLOCK_EXEC, pcb);
 
     bool setup_ok = true;