diff --git a/test/cmdlineTests/asm_json_import_non_unique_sources/args b/test/cmdlineTests/asm_json_import_non_unique_sources/args
new file mode 100644
index 000000000..d27cc7bb2
--- /dev/null
+++ b/test/cmdlineTests/asm_json_import_non_unique_sources/args
@@ -0,0 +1 @@
+--asm-json --import-asm-json -
diff --git a/test/cmdlineTests/asm_json_import_non_unique_sources/err b/test/cmdlineTests/asm_json_import_non_unique_sources/err
new file mode 100644
index 000000000..5ba74fc8a
--- /dev/null
+++ b/test/cmdlineTests/asm_json_import_non_unique_sources/err
@@ -0,0 +1 @@
+Assembly Import Error: Items in 'sourceList' array are not unique.
diff --git a/test/cmdlineTests/asm_json_import_non_unique_sources/exit b/test/cmdlineTests/asm_json_import_non_unique_sources/exit
new file mode 100644
index 000000000..d00491fd7
--- /dev/null
+++ b/test/cmdlineTests/asm_json_import_non_unique_sources/exit
@@ -0,0 +1 @@
+1
diff --git a/test/cmdlineTests/asm_json_import_non_unique_sources/stdin b/test/cmdlineTests/asm_json_import_non_unique_sources/stdin
new file mode 100644
index 000000000..8264c0c1d
--- /dev/null
+++ b/test/cmdlineTests/asm_json_import_non_unique_sources/stdin
@@ -0,0 +1,23 @@
+{
+  ".code": [
+    {
+      "name": "PUSH",
+      "value": "0"
+    }
+  ],
+  ".data": {
+    "0": {
+      ".code": [
+        {
+          "name": "PUSH",
+          "value": "1"
+        }
+      ]
+    }
+  },
+  "sourceList": [
+    "contract.sol",
+    "contract.sol",
+    "#utility.yul"
+  ]
+}