diff --git a/include/core/common.h b/include/core/common.h
index e4fd65b..f65fb24 100644
--- a/include/core/common.h
+++ b/include/core/common.h
@@ -14,6 +14,7 @@
 #include <unordered_set>
 #include <variant>
 #include <vector>
+#include <cstdint>
 
 namespace infini {
 using std::list;
diff --git a/include/core/op_type.h b/include/core/op_type.h
index db67f33..1f03e30 100644
--- a/include/core/op_type.h
+++ b/include/core/op_type.h
@@ -4,6 +4,7 @@
 
 #include <string>
 #include <unordered_set>
+#include <cstdint>
 
 namespace infini
 {