diff --git a/packages/imask/src/masked/date.js b/packages/imask/src/masked/date.js
index 97ec0140..7a619894 100644
--- a/packages/imask/src/masked/date.js
+++ b/packages/imask/src/masked/date.js
@@ -40,24 +40,22 @@ class MaskedDate extends MaskedPattern {
       delete opts.pattern;
     }
 
-    if (opts.blocks) {
-      const blocks = opts.blocks;
-      opts.blocks = Object.assign({}, MaskedDate.GET_DEFAULT_BLOCKS());
-      // adjust year block
-      if (opts.min) opts.blocks.Y.from = opts.min.getFullYear();
-      if (opts.max) opts.blocks.Y.to = opts.max.getFullYear();
-      if (opts.min && opts.max && opts.blocks.Y.from === opts.blocks.Y.to
-      ) {
-        opts.blocks.m.from = opts.min.getMonth() + 1;
-        opts.blocks.m.to = opts.max.getMonth() + 1;
+    const blocks = opts.blocks;
+    opts.blocks = Object.assign({}, MaskedDate.GET_DEFAULT_BLOCKS());
+    // adjust year block
+    if (opts.min) opts.blocks.Y.from = opts.min.getFullYear();
+    if (opts.max) opts.blocks.Y.to = opts.max.getFullYear();
+    if (opts.min && opts.max && opts.blocks.Y.from === opts.blocks.Y.to
+    ) {
+      opts.blocks.m.from = opts.min.getMonth() + 1;
+      opts.blocks.m.to = opts.max.getMonth() + 1;
 
-        if (opts.blocks.m.from === opts.blocks.m.to) {
-          opts.blocks.d.from = opts.min.getDate();
-          opts.blocks.d.to = opts.max.getDate();
-        }
+      if (opts.blocks.m.from === opts.blocks.m.to) {
+        opts.blocks.d.from = opts.min.getDate();
+        opts.blocks.d.to = opts.max.getDate();
       }
-      Object.assign(opts.blocks, blocks);
     }
+    Object.assign(opts.blocks, blocks);
 
     super._update(opts);
   }