diff --git a/benchmark/CMakeLists.txt b/benchmark/CMakeLists.txt
index ba9113de0f66f66ffe80e85815a37123bfae75c2..1c7e03374a062b41316e860739415a347851aa3b 100644
--- a/benchmark/CMakeLists.txt
+++ b/benchmark/CMakeLists.txt
@@ -68,6 +68,7 @@ ENDIF(CPPADCG_FOUND)
 # timings-eigen
 # 
 ADD_BENCH(timings-eigen)
+PKG_CONFIG_USE_DEPENDENCY(timings-eigen "eigen3")
 
 # timings-geometry
 #