diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index 434c593..ff9ff56 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -33,6 +33,8 @@ if (32BIT)
   set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
 endif ()
 
+find_package(absl REQUIRED CONFIG)
+
 # Helper functions dealing with finding libraries and programs this library
 # depends on.
 
