diff --git a/Modules/_lzmamodule.c b/Modules/_lzmamodule.c
index 8ea3d01..029d4dd 100644
--- a/Modules/_lzmamodule.c
+++ b/Modules/_lzmamodule.c
@@ -412,7 +412,11 @@
             ADD_FIELD(options, lc);
             ADD_FIELD(options, lp);
             ADD_FIELD(options, pb);
-        case LZMA_FILTER_LZMA2:
+            ADD_FIELD(options, dict_size);
+            break;
+        }
+        case LZMA_FILTER_LZMA2: {
+            lzma_options_lzma *options = f->options;
             ADD_FIELD(options, dict_size);
             break;
         }