diff --git a/common/implementation/src/test/java/MetaTest.java b/common/implementation/src/test/java/MetaTest.java
index cc41f9c2e..90d549459 100644
--- a/common/implementation/src/test/java/MetaTest.java
+++ b/common/implementation/src/test/java/MetaTest.java
@@ -5,6 +5,7 @@ import com.dfsek.tectonic.loading.ConfigLoader;
 import com.dfsek.tectonic.yaml.YamlConfiguration;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.config.preprocessor.MetaListPreprocessor;
+import com.dfsek.terra.config.preprocessor.MetaMapPreprocessor;
 import com.dfsek.terra.config.preprocessor.MetaValuePreprocessor;
 import org.junit.jupiter.api.Test;
 
@@ -26,12 +27,36 @@ public class MetaTest {
         ConfigLoader loader = new ConfigLoader();
         loader.registerPreprocessor(Meta.class, new MetaValuePreprocessor(configurationMap));
         loader.registerPreprocessor(Meta.class, new MetaListPreprocessor(configurationMap));
+        loader.registerPreprocessor(Meta.class, new MetaMapPreprocessor(configurationMap));
 
-        loader.load(new ConfigTest(), meta).list.forEach(System.out::println);
+        loader.load(new MetaListConfig(), meta).list.forEach(System.out::println);
     }
 
-    private static final class ConfigTest implements ConfigTemplate {
+    private static final class MetaListConfig implements ConfigTemplate {
         @Value("list")
         private @Meta List<@Meta String> list;
     }
+
+    @Test
+    public void testMetaMap() {
+        Configuration meta = new YamlConfiguration(MetaTest.class.getResourceAsStream("/meta.yml"), "meta.yml");
+        Configuration metaTarget = new YamlConfiguration(MetaTest.class.getResourceAsStream("/metaTarget.yml"), "metaTarget.yml");
+
+        Map<String, Configuration> configurationMap = new HashMap<>();
+
+        configurationMap.put(meta.getName(), meta);
+        configurationMap.put(metaTarget.getName(), metaTarget);
+
+        ConfigLoader loader = new ConfigLoader();
+        loader.registerPreprocessor(Meta.class, new MetaValuePreprocessor(configurationMap));
+        loader.registerPreprocessor(Meta.class, new MetaListPreprocessor(configurationMap));
+        loader.registerPreprocessor(Meta.class, new MetaMapPreprocessor(configurationMap));
+
+        loader.load(new MetaMapConfig(), meta).map.forEach((k, v) -> System.out.println(k + ": " + v));
+    }
+
+    private static final class MetaMapConfig implements ConfigTemplate {
+        @Value("map")
+        private @Meta Map<@Meta String, @Meta String> map;
+    }
 }
diff --git a/common/implementation/src/test/resources/meta.yml b/common/implementation/src/test/resources/meta.yml
index 863f1a6ef..e07ed2631 100644
--- a/common/implementation/src/test/resources/meta.yml
+++ b/common/implementation/src/test/resources/meta.yml
@@ -6,4 +6,10 @@ list:
   - SIX
   - "<< metaTarget.yml:list2"
   - NINE
-  - TEN
\ No newline at end of file
+  - TEN
+map:
+  "<<":
+    - metaTarget.yml:map1
+    - metaTarget.yml:map2
+  one: ONE
+  two: TWO
\ No newline at end of file
diff --git a/common/implementation/src/test/resources/metaTarget.yml b/common/implementation/src/test/resources/metaTarget.yml
index c64ab3085..50bf4d807 100644
--- a/common/implementation/src/test/resources/metaTarget.yml
+++ b/common/implementation/src/test/resources/metaTarget.yml
@@ -3,4 +3,10 @@ list:
   - THREE
 list2:
   - SEVEN
-  - EIGHT
\ No newline at end of file
+  - EIGHT
+map1:
+  three: THREE
+  four: FOUR
+  five: FIVE
+map2:
+  six: SIX
\ No newline at end of file