diff --git a/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm.hpp b/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm.hpp
index f49f57af76..af735925ed 100644
--- a/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm.hpp
+++ b/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm.hpp
@@ -5,6 +5,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <unordered_map>
 
 #include "ck/tensor_operation/gpu/element/unary_element_wise_operation.hpp"
 #include "ck/tensor_operation/gpu/device/device_base.hpp"
diff --git a/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm2.hpp b/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm2.hpp
index 5bc3c0d3d6..1e8a086bc4 100644
--- a/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm2.hpp
+++ b/library/include/ck/library/reference_tensor_operation/cpu/reference_moe_gemm2.hpp
@@ -5,6 +5,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <unordered_map>
 
 #include "ck/tensor_operation/gpu/element/unary_element_wise_operation.hpp"
 #include "ck/tensor_operation/gpu/device/device_base.hpp"