diff --git a/code/extensions/FileTextExtractable.php b/code/extensions/FileTextExtractable.php
index 39daa22..60d4fbe 100644
--- a/code/extensions/FileTextExtractable.php
+++ b/code/extensions/FileTextExtractable.php
@@ -28,7 +28,7 @@ class FileTextExtractable extends DataExtension {
 
 		// Determine which extractor can process this file.
 		$extractor = FileTextExtractor::for_file($this->owner->FullPath);
-		if (!$extractor) return null;
+		if (!$extractor || !$extractor->isAvailable()) return null;
 
 		$text = $extractor->getContent($this->owner->FullPath);
 		if (!$text) return null;
@@ -40,4 +40,4 @@ class FileTextExtractable extends DataExtension {
 	}
 }
 
-?>
\ No newline at end of file
+?>