diff --git a/config.c b/config.c
index eebce8c..ae3652b 100644
--- a/config.c
+++ b/config.c
@@ -1584,8 +1584,10 @@
 	if (!strcmp(var, "core.askpass"))
 		return git_config_string(&askpass_program, var, value);
 
-	if (!strcmp(var, "core.excludesfile"))
+	if (!strcmp(var, "core.excludesfile")) {
+		free((char *)excludes_file);
 		return git_config_pathname(&excludes_file, var, value);
+	}
 
 	if (!strcmp(var, "core.whitespace")) {
 		if (!value)
diff --git a/t/t7300-clean.sh b/t/t7300-clean.sh
index 1f7201e..0aae0de 100755
--- a/t/t7300-clean.sh
+++ b/t/t7300-clean.sh
@@ -5,6 +5,7 @@
 
 test_description='git clean basic tests'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 git config clean.requireForce no