diff --git a/lib/less/parser/parser-input.js b/lib/less/parser/parser-input.js
index 267ef8ea..ad799e85 100644
--- a/lib/less/parser/parser-input.js
+++ b/lib/less/parser/parser-input.js
@@ -239,7 +239,7 @@ module.exports = function() {
 
     parserInput.end = function() {
         var message,
-            isFinished = parserInput.i >= input.length - 1;
+            isFinished = parserInput.i >= input.length;
 
         if (parserInput.i < furthest) {
             message = furthestPossibleErrorMessage;
diff --git a/test/less/errors/single-character.less b/test/less/errors/single-character.less
new file mode 100644
index 00000000..c1b0730e
--- /dev/null
+++ b/test/less/errors/single-character.less
@@ -0,0 +1 @@
+x
\ No newline at end of file
diff --git a/test/less/errors/single-character.txt b/test/less/errors/single-character.txt
new file mode 100644
index 00000000..b9e49a5e
--- /dev/null
+++ b/test/less/errors/single-character.txt
@@ -0,0 +1,2 @@
+ParseError: Unrecognised input. Possibly missing something in {path}single-character.less on line 1, column 2:
+1 x