diff --git a/core/serialization/blocks.js b/core/serialization/blocks.js
index 6aabb08eebd..f093541a3ee 100644
--- a/core/serialization/blocks.js
+++ b/core/serialization/blocks.js
@@ -623,6 +623,12 @@ const initBlock = function(block, rendered) {
 
     blockSvg.initSvg();
     blockSvg.render(false);
+    // fixes #6076 JSO deserialization doesn't
+    // set .iconXY_ property so here it will be set
+    const icons = block.getIcons();
+    for (let i = 0; i < icons.length; i++) {
+      icons[i].computeIconLocation();
+    }
   } else {
     block.initModel();
   }