diff --git a/tests/source-multiple-1.vars b/tests/source-multiple-1.vars
new file mode 100644
index 0000000..433ea91
--- /dev/null
+++ b/tests/source-multiple-1.vars
@@ -0,0 +1,2 @@
+export A=from1
+export B=from1
diff --git a/tests/source-multiple-2.vars b/tests/source-multiple-2.vars
new file mode 100644
index 0000000..55b5263
--- /dev/null
+++ b/tests/source-multiple-2.vars
@@ -0,0 +1,2 @@
+export B=from2
+export C=from2
diff --git a/tests/source-multiple.expected b/tests/source-multiple.expected
new file mode 100644
index 0000000..c9f29f8
--- /dev/null
+++ b/tests/source-multiple.expected
@@ -0,0 +1,3 @@
+A: from1
+B: from2
+C: from2
diff --git a/tests/source-multiple.sh b/tests/source-multiple.sh
new file mode 100755
index 0000000..7c3023c
--- /dev/null
+++ b/tests/source-multiple.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+cd "${0%/*}" || exit 1
+cat <<EOF | ../mo --source=source-multiple-1.vars --source=source-multiple-2.vars
+A: {{A}}
+B: {{B}}
+C: {{C}}
+EOF