diff --git a/lib/cli_repl.dart b/lib/cli_repl.dart
index 1e3331b..d9c5bec 100644
--- a/lib/cli_repl.dart
+++ b/lib/cli_repl.dart
@@ -17,7 +17,8 @@ class Repl {
       {this.prompt: '',
       String continuation,
       StatementValidator validator,
-      this.maxHistory: 50})
+      this.maxHistory: 50,
+      this.logWhitespace: true})
       : continuation = continuation ?? ' ' * prompt.length,
         validator = validator ?? alwaysValid {
     _adapter = new ReplAdapter(this);
@@ -45,6 +46,11 @@ class Repl {
   ///
   /// Defaults to 50.
   int maxHistory;
+
+  /// Should repl history include whitespace-only entries
+  ///
+  /// Defaults to true
+  bool logWhitespace;
 }
 
 /// Returns true if [text] is a complete statement or false otherwise.
diff --git a/lib/src/repl_adapter/vm.dart b/lib/src/repl_adapter/vm.dart
index 4d10e9c..25604cb 100644
--- a/lib/src/repl_adapter/vm.dart
+++ b/lib/src/repl_adapter/vm.dart
@@ -227,7 +227,8 @@ class ReplAdapter {
         String contents = new String.fromCharCodes(buffer);
         setCursor(buffer.length);
         input(char);
-        if (repl.history.isEmpty || contents != repl.history.first) {
+        if ((repl.history.isEmpty || contents != repl.history.first)
+          && (contents.trim().isNotEmpty || repl.logWhitespace)) {
           repl.history.insert(0, contents);
         }
         while (repl.history.length > repl.maxHistory) {