diff --git a/tests/sys/mac/do/invalid_configs.sh b/tests/sys/mac/do/invalid_configs.sh
index 848e2b5c957..d1a9eb8c1e9 100644
--- a/tests/sys/mac/do/invalid_configs.sh
+++ b/tests/sys/mac/do/invalid_configs.sh
@@ -75,7 +75,7 @@ rules_wrong_separator_body()
 
 atf_init_test_cases()
 {
-    . $(atf_get_srcdir)/common.sh
+    . "$(atf_get_srcdir)"/common.sh
 
     atf_add_test_case rule_no_target_part
     atf_add_test_case rule_no_match_part
diff --git a/tests/sys/mac/do/valid_configs.sh b/tests/sys/mac/do/valid_configs.sh
index 44cfd62acc6..fc1c9a37085 100644
--- a/tests/sys/mac/do/valid_configs.sh
+++ b/tests/sys/mac/do/valid_configs.sh
@@ -120,7 +120,7 @@ gid= 1001 >gid =5"
 
 atf_init_test_cases()
 {
-    . $(atf_get_srcdir)/common.sh
+    . "$(atf_get_srcdir)"/common.sh
 
     atf_add_test_case rule_uid_to_any
     atf_add_test_case rule_uid_to_uid