diff --git a/test/src/test/kotlin/eu/iamgio/quarkdown/test/FullPipelineTest.kt b/test/src/test/kotlin/eu/iamgio/quarkdown/test/FullPipelineTest.kt
index da96192c..928edbbb 100644
--- a/test/src/test/kotlin/eu/iamgio/quarkdown/test/FullPipelineTest.kt
+++ b/test/src/test/kotlin/eu/iamgio/quarkdown/test/FullPipelineTest.kt
@@ -1087,6 +1087,16 @@ class FullPipelineTest {
                 """.trimIndent(),
             ) {}
         }
+
+        // Library's injected localization table.
+        execute(
+            """
+            .doclang {english}
+            .localize {std:warning}
+            """.trimIndent(),
+        ) {
+            assertEquals("<p>Warning</p>", it)
+        }
     }
 
     @Test