diff --git a/gtsam/hybrid/tests/testHybridSmoother.cpp b/gtsam/hybrid/tests/testHybridSmoother.cpp
index 960649b64..97a302faf 100644
--- a/gtsam/hybrid/tests/testHybridSmoother.cpp
+++ b/gtsam/hybrid/tests/testHybridSmoother.cpp
@@ -39,7 +39,6 @@
 using namespace std;
 using namespace gtsam;
 
-using symbol_shorthand::L;
 using symbol_shorthand::X;
 using symbol_shorthand::Z;