diff --git a/unit_test/test_aprox_rates/main.cpp b/unit_test/test_aprox_rates/main.cpp
index 861e7fba95..9200d70ee3 100644
--- a/unit_test/test_aprox_rates/main.cpp
+++ b/unit_test/test_aprox_rates/main.cpp
@@ -102,9 +102,6 @@ void main_main ()
     // for C++
     plot_t vars;
 
-    // for F90
-    Vector<std::string> varnames;
-
     // C++ test
     vars = init_variables();
 
diff --git a/unit_test/test_conductivity/main.cpp b/unit_test/test_conductivity/main.cpp
index 820fdcfa16..ff02e80fc9 100644
--- a/unit_test/test_conductivity/main.cpp
+++ b/unit_test/test_conductivity/main.cpp
@@ -102,9 +102,6 @@ void main_main ()
     // for C++
     plot_t vars;
 
-    // for F90
-    Vector<std::string> varnames;
-
     // C++ test
     vars = init_variables();