diff --git a/include/pocketpy/vm.h b/include/pocketpy/vm.h
index 15d90de1..1a93bdee 100644
--- a/include/pocketpy/vm.h
+++ b/include/pocketpy/vm.h
@@ -20,7 +20,6 @@ namespace pkpy{
 #define TOP()             (s_data.top())
 #define SECOND()          (s_data.second())
 #define THIRD()           (s_data.third())
-#define PEEK(n)           (s_data.peek(n))
 #define STACK_SHRINK(n)   (s_data.shrink(n))
 #define PUSH(v)           (s_data.push(v))
 #define POP()             (s_data.pop())
diff --git a/src/ceval.cpp b/src/ceval.cpp
index 5361e024..1573c895 100644
--- a/src/ceval.cpp
+++ b/src/ceval.cpp
@@ -996,7 +996,6 @@ __NEXT_STEP:;
 #undef TOP
 #undef SECOND
 #undef THIRD
-#undef PEEK
 #undef STACK_SHRINK
 #undef PUSH
 #undef POP