diff --git a/test/lib/arguments-test.sh b/test/lib/arguments-test.sh
index a812193..c42a216 100755
--- a/test/lib/arguments-test.sh
+++ b/test/lib/arguments-test.sh
@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
-source "../assert.sh"
-
+source "../test-helper.sh"
 source "../../src/lib/arguments.sh"
 
 
diff --git a/test/lib/trim-test.sh b/test/lib/trim-test.sh
index 1c03c57..5a53aea 100755
--- a/test/lib/trim-test.sh
+++ b/test/lib/trim-test.sh
@@ -1,6 +1,5 @@
 #! /usr/bin/env bash
-source "../assert.sh"
-
+source "../test-helper.sh"
 source "../../src/lib/trim.sh"
 
 assert 'trim "  foo bar  "' "foo bar"