diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23a55da..6b62f99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## 0.1.2
+
+* FileType: Catch `MappingException` on `getDescription()`.
+
 ## 0.1.1
 
 * Use `sys_get_temp_dir()` and `tempnam()` to get a temporary file path if the
diff --git a/packages/file/src/Type/MimeMapFileTypeAdapter.php b/packages/file/src/Type/MimeMapFileTypeAdapter.php
index 441ac6b..4c5daa9 100644
--- a/packages/file/src/Type/MimeMapFileTypeAdapter.php
+++ b/packages/file/src/Type/MimeMapFileTypeAdapter.php
@@ -80,8 +80,12 @@ public function getExtension(): ?string
 
     public function getDescription(): string|(\Stringable&TranslatableInterface)
     {
-        return new TranslatableTypeDescription(
-            $this->getParsed()->getDescription()
-        );
+        try {
+            return $this->getParsed()->getDescription();
+        } catch (MappingException) {
+            return new TranslatableTypeDescription(
+                'Unknown file type'
+            );
+        }
     }
 }