diff --git a/extensions/0832/rxFS.js b/extensions/0832/rxFS.js
index 4191496066..331cc5d18a 100644
--- a/extensions/0832/rxFS.js
+++ b/extensions/0832/rxFS.js
@@ -149,6 +149,7 @@
           {
             blockIconURI: file,
             opcode: "search",
+            hideFromPalette: true,
             blockType: Scratch.BlockType.REPORTER,
             text: Scratch.translate("search [STR]"),
             arguments: {
@@ -200,8 +201,11 @@
 
     del({ STR }) {
       str = btoa(unescape(encodeURIComponent(STR)));
-      rxFSfi[rxFSsy.indexOf(str) + 1 - 1] = undefined;
-      rxFSsy[rxFSsy.indexOf(str) + 1 - 1] = undefined;
+      const index = rxFSsy.indexOf(str);
+      if (index !== -1) {
+        rxFSfi.splice(index, 1);
+        rxFSsy.splice(index, 1);
+      }
     }
 
     file({ STR, STR2 }) {
diff --git a/extensions/0832/rxFS2.js b/extensions/0832/rxFS2.js
index 4e631709b9..31fad1e381 100644
--- a/extensions/0832/rxFS2.js
+++ b/extensions/0832/rxFS2.js
@@ -180,6 +180,7 @@
           {
             blockIconURI: folder,
             opcode: "search",
+            hideFromPalette: true,
             blockType: Scratch.BlockType.REPORTER,
             text: Scratch.translate({ id: "search", default: "search [STR]" }),
             arguments: {
@@ -225,8 +226,11 @@
 
     del({ STR }) {
       str = encodeURIComponent(STR);
-      rxFSfi[rxFSsy.indexOf(str) + 1 - 1] = undefined;
-      rxFSsy[rxFSsy.indexOf(str) + 1 - 1] = undefined;
+      const index = rxFSsy.indexOf(str);
+      if (index !== -1) {
+        rxFSfi.splice(index, 1);
+        rxFSsy.splice(index, 1);
+      }
     }
 
     folder({ STR, STR2 }) {