diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 2f07a81..d7b670d 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -25,6 +25,9 @@ add_library(adakCore
     GeometricDisconnect.cpp
     SystemClock.cpp)
 
+# Find GTest to get gmock
+find_package(GTest REQUIRED)
+
 # Newer versions of protobuf require abseil
 find_package(absl REQUIRED)