diff --git a/spec/libsass-todo-issues/issue_1187/expected.compact.css b/spec/libsass-todo-issues/issue_1187/expected.compact.css
new file mode 100644
index 0000000000..6dad22b4a7
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_1187/expected.compact.css
@@ -0,0 +1 @@
+Duplicate key "foo" in map ($a: 1, $b: 2).
\ No newline at end of file
diff --git a/spec/libsass-todo-issues/issue_1187/expected.compressed.css b/spec/libsass-todo-issues/issue_1187/expected.compressed.css
new file mode 100644
index 0000000000..6dad22b4a7
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_1187/expected.compressed.css
@@ -0,0 +1 @@
+Duplicate key "foo" in map ($a: 1, $b: 2).
\ No newline at end of file
diff --git a/spec/libsass-todo-issues/issue_1187/expected.expanded.css b/spec/libsass-todo-issues/issue_1187/expected.expanded.css
new file mode 100644
index 0000000000..6dad22b4a7
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_1187/expected.expanded.css
@@ -0,0 +1 @@
+Duplicate key "foo" in map ($a: 1, $b: 2).
\ No newline at end of file
diff --git a/spec/libsass-todo-issues/issue_1187/expected_output.css b/spec/libsass-todo-issues/issue_1187/expected_output.css
new file mode 100644
index 0000000000..6dad22b4a7
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_1187/expected_output.css
@@ -0,0 +1 @@
+Duplicate key "foo" in map ($a: 1, $b: 2).
\ No newline at end of file
diff --git a/spec/libsass-todo-issues/issue_1187/input.scss b/spec/libsass-todo-issues/issue_1187/input.scss
new file mode 100644
index 0000000000..ccdd352a95
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_1187/input.scss
@@ -0,0 +1,11 @@
+$a: 'foo';
+$b: 'foo';
+$map: (
+  $a: 1,
+  $b: 2
+);
+
+.foo {
+  content: $a == $b;
+  content: inspect($map);
+}
\ No newline at end of file