diff --git a/CMakeLists.txt b/CMakeLists.txt
index e4041be..3fd9d58 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -134,6 +134,7 @@ if (PHMAP_BUILD_EXAMPLES)
     add_executable(ex_bench examples/bench.cc phmap.natvis)
     add_executable(ex_emplace examples/emplace.cc phmap.natvis)
     add_executable(ex_serialize examples/serialize.cc phmap.natvis)
+    target_include_directories(ex_serialize PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../cereal/include>)
     add_executable(ex_hash_std examples/hash_std.cc phmap.natvis)
     add_executable(ex_hash_value examples/hash_value.cc phmap.natvis)
     add_executable(ex_two_files examples/f1.cc examples/f2.cc phmap.natvis)