diff --git a/HISTORY.md b/HISTORY.md
index 6ee62c60..481196aa 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -9,6 +9,7 @@
 * Lists, Threads, Objects: added (Bernat's) JSON parser to SPLIT block
 * Lists, Objects: added "export as JSON" capability
 * Lists, Objects: automatically parse json files on import 
+* Lists: prevent Booleans in CSVs
 
 ### 2019-01-08
 * Objects: automatically parse csv files on import, experimental "raw data" and "parse" ops
diff --git a/src/lists.js b/src/lists.js
index 8f701e32..4c58206e 100644
--- a/src/lists.js
+++ b/src/lists.js
@@ -539,8 +539,6 @@ List.prototype.canBeCSV = function () {
     return this.itemsArray().every(function (value) {
         return !isNaN(+value) ||
             isString(value) ||
-            value === true ||
-            value === false ||
             (value instanceof List && value.hasOnlyAtomicData());
     });
 };
@@ -558,9 +556,7 @@ List.prototype.canBeJSON = function () {
 List.prototype.hasOnlyAtomicData = function () {
     return this.itemsArray().every(function (value) {
         return !isNaN(+value) ||
-            isString(value) ||
-            value === true ||
-            value === false;
+            isString(value);
     });
 };