diff --git a/src/my_pool_chunk.h b/src/my_pool_chunk.h
index 3a8209eb8d..06264884d1 100644
--- a/src/my_pool_chunk.h
+++ b/src/my_pool_chunk.h
@@ -14,6 +14,8 @@
 #ifndef LAMMPS_MY_POOL_CHUNK_H
 #define LAMMPS_MY_POOL_CHUNK_H
 
+#include "lmptype.h"
+
 namespace LAMMPS_NS {
 
 template <class T> class MyPoolChunk {