diff --git a/bin/checkAllPads.js b/bin/checkAllPads.js
index 6e1f14842..8426d4429 100644
--- a/bin/checkAllPads.js
+++ b/bin/checkAllPads.js
@@ -30,7 +30,7 @@ npm.load({}, async () => {
       const pad = await padManager.getPad(padId);
 
       // check if the pad has a pool
-      if (pad.pool === undefined) {
+      if (pad.pool == null) {
         console.error(`[${pad.id}] Missing attribute pool`);
         continue;
       }
@@ -66,7 +66,7 @@ npm.load({}, async () => {
         }
 
         // check if there is a atext in the keyRevisions
-        if (revisions[keyRev].meta === undefined || revisions[keyRev].meta.atext === undefined) {
+        if (revisions[keyRev].meta == null || revisions[keyRev].meta.atext == null) {
           console.error(`[${pad.id}] Missing atext in revision ${keyRev}`);
           continue;
         }
diff --git a/bin/checkPad.js b/bin/checkPad.js
index de1c51402..374a3c856 100644
--- a/bin/checkPad.js
+++ b/bin/checkPad.js
@@ -59,12 +59,12 @@ npm.load({}, async () => {
       }
 
       // check if the pad has a pool
-      if (pad.pool === undefined) throw new Error('Attribute pool is missing');
+      if (pad.pool == null) throw new Error('Attribute pool is missing');
 
       // check if there is an atext in the keyRevisions
-      if (revisions[keyRev] === undefined ||
-          revisions[keyRev].meta === undefined ||
-          revisions[keyRev].meta.atext === undefined) {
+      if (revisions[keyRev] == null ||
+          revisions[keyRev].meta == null ||
+          revisions[keyRev].meta.atext == null) {
         console.error(`No atext in key revision ${keyRev}`);
         continue;
       }
diff --git a/bin/checkPadDeltas.js b/bin/checkPadDeltas.js
index ecbb20846..c53275a28 100644
--- a/bin/checkPadDeltas.js
+++ b/bin/checkPadDeltas.js
@@ -55,9 +55,7 @@ npm.load({}, async () => {
     const revision = await db.get(`pad:${padId}:revs:${revNum}`);
     // check if there is a atext in the keyRevisions
     if (~keyRevisions.indexOf(revNum) &&
-        (revision === undefined ||
-         revision.meta === undefined ||
-         revision.meta.atext === undefined)) {
+        (revision == null || revision.meta == null || revision.meta.atext == null)) {
       console.error(`No atext in key revision ${revNum}`);
       continue;
     }