diff --git a/Cargo.lock b/Cargo.lock
index 82b84cf4..3976f8aa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -334,6 +334,7 @@ checksum = "68b900aa2f7301e21c36462b170ee99994de34dff39a4a6a528e80e7376d07e5"
 dependencies = [
  "equivalent",
  "hashbrown",
+ "serde",
 ]
 
 [[package]]
diff --git a/schemars/Cargo.toml b/schemars/Cargo.toml
index 1fcb99b9..3e6b91f7 100644
--- a/schemars/Cargo.toml
+++ b/schemars/Cargo.toml
@@ -49,6 +49,7 @@ chrono04 = { version = "0.4", default-features = false, features = ["serde"], pa
 bigdecimal04 = { version = "0.4", default-features = false, features = ["serde"], package = "bigdecimal" }
 rust_decimal1 = { version = "1", default-features = false, features = ["serde"], package = "rust_decimal" }
 either1 = { version = "1.3", default-features = false, features = ["serde"], package = "either" }
+indexmap2 = { version = "2.0", default-features = false, features = ["serde"], package = "indexmap" }
 
 [features]
 default = ["derive", "std"]
diff --git a/schemars/tests/integration/indexmap.rs b/schemars/tests/integration/indexmap.rs
new file mode 100644
index 00000000..c6ef7d54
--- /dev/null
+++ b/schemars/tests/integration/indexmap.rs
@@ -0,0 +1,19 @@
+use crate::prelude::*;
+use indexmap2::{indexmap, indexset, IndexMap, IndexSet};
+use std::collections::{BTreeMap, BTreeSet};
+
+#[test]
+fn indexmap() {
+    test!(IndexMap<String, bool>)
+        .assert_identical::<BTreeMap<String, bool>>()
+        .assert_allows_ser_roundtrip([indexmap!(), indexmap!("key".to_owned() => true)])
+        .assert_matches_de_roundtrip(arbitrary_values());
+}
+
+#[test]
+fn indexset() {
+    test!(IndexSet<String>)
+        .assert_identical::<BTreeSet<String>>()
+        .assert_allows_ser_roundtrip([indexset!(), indexset!("test".to_owned())])
+        .assert_matches_de_roundtrip(arbitrary_values());
+}
diff --git a/schemars/tests/integration/main.rs b/schemars/tests/integration/main.rs
index b750ebfe..622d6d5b 100644
--- a/schemars/tests/integration/main.rs
+++ b/schemars/tests/integration/main.rs
@@ -24,6 +24,8 @@ mod extend;
 mod flatten;
 mod from_value;
 mod garde;
+#[cfg(feature = "indexmap2")]
+mod indexmap;
 mod std_types;
 
 mod prelude {
@@ -36,6 +38,7 @@ mod prelude {
 
 mod test_helper;
 
+#[macro_export]
 macro_rules! test_name {
     () => {{
         fn f() {}
@@ -51,20 +54,18 @@ macro_rules! test_name {
     }};
 }
 
+#[macro_export]
 macro_rules! test {
     ($type:ty, $settings:expr) => {
-        $crate::test_helper::TestHelper::<$type>::new(crate::test_name!(), $settings)
+        $crate::test_helper::TestHelper::<$type>::new($crate::test_name!(), $settings)
     };
     ($type:ty) => {
         test!($type, schemars::generate::SchemaSettings::default())
     };
     (value: $value:expr, $settings:expr) => {
-        $crate::test_helper::TestHelper::new_for_value(crate::test_name!(), $settings, $value)
+        $crate::test_helper::TestHelper::new_for_value($crate::test_name!(), $settings, $value)
     };
     (value: $value:expr) => {
         test!(value: $value, schemars::generate::SchemaSettings::default())
     };
 }
-
-use test;
-use test_name;