diff --git a/SConstruct b/SConstruct
index 7dcb2690da59..dc9b45386d28 100755
--- a/SConstruct
+++ b/SConstruct
@@ -392,7 +392,7 @@ if env["prereqs"]:
     test_env = client_env.Clone()
     conf = test_env.Configure(**configure_args)
 
-    have_test_prereqs = have_client_prereqs and have_server_prereqs and conf.CheckBoost('unit_test_framework') \
+    have_test_prereqs = have_client_prereqs and conf.CheckBoost('unit_test_framework') \
                             or Warning("WARN: Unit tests are disabled because their prerequisites are not met")
     test_env = conf.Finish()
     if not have_test_prereqs and "test" in env["default_targets"]:
diff --git a/src/SConscript b/src/SConscript
index 63475bf64f95..d7a826571a54 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -684,7 +684,7 @@ test_sources = Split("""
     """)
 test_sources.extend(test_env.Object("tests/test_config_cache.cpp"))
 
-test = test_env.WesnothProgram("test", test_sources +  [libtest_utils, libwesnoth_extras, libwesnoth_core, libwesnoth_sdl, libwesnoth], have_test_prereqs)
+test = test_env.WesnothProgram("test", test_sources +  [libtest_utils, libwesnoth_extras, libwesnoth_core, libwesnoth, libwesnoth_sdl, libwesnoth_extras], have_test_prereqs)
 
 create_images_sources = Split("""
     tests/create_images.cpp