diff --git a/src/filo-fs-ext2.adb b/src/filo-fs-ext2.adb
index db1c1a3..51f872b 100644
--- a/src/filo-fs-ext2.adb
+++ b/src/filo-fs-ext2.adb
@@ -227,6 +227,12 @@
       is
          Cache_Start, Cache_End : Max_Block_Index;
       begin
+         if Indirect_Block_Phys = 0 then
+            Next_Physical := 0;
+            Success := True;
+            return;
+         end if;
+
          Cache_FSBlock
            (Static      => Static,
             Cache       => State.Cache,