diff --git a/tests/config/global.c b/tests/config/global.c
index 0ddd204ad..a149dc0be 100644
--- a/tests/config/global.c
+++ b/tests/config/global.c
@@ -73,7 +73,7 @@ void test_config_global__open_programdata(void)
 	git_buf config_path = GIT_BUF_INIT;
 	git_buf var_contents = GIT_BUF_INIT;
 
-	if (!cl_getenv("GITTEST_INVASIVE_FS_STRUCTURE"))
+	if (cl_is_env_set("GITTEST_INVASIVE_FS_STRUCTURE"))
 		cl_skip();
 
 	cl_git_pass(git_libgit2_opts(GIT_OPT_GET_SEARCH_PATH,
diff --git a/tests/config/stress.c b/tests/config/stress.c
index 6e960425c..a6b665590 100644
--- a/tests/config/stress.c
+++ b/tests/config/stress.c
@@ -126,4 +126,7 @@ void test_config_stress__quick_write(void)
 		cl_git_pass(git_config_get_int32(&val, config_r, key));
 		cl_assert_equal_i(i, val);
 	}
+
+	git_config_free(config_r);
+	git_config_free(config_w);
 }
diff --git a/tests/win32/longpath.c b/tests/win32/longpath.c
index 6de7d389a..07eecd394 100644
--- a/tests/win32/longpath.c
+++ b/tests/win32/longpath.c
@@ -46,6 +46,8 @@ void assert_name_too_long(void)
 
 	/* check the suffix */
 	cl_assert_equal_s(expected_msg, err->message + (actual_len - expected_len));
+
+	git__free(expected_msg);
 }
 #endif