diff --git a/docs/pyqgis_developer_cookbook/expressions.rst b/docs/pyqgis_developer_cookbook/expressions.rst
index 7868af54eee..8423c0407ed 100644
--- a/docs/pyqgis_developer_cookbook/expressions.rst
+++ b/docs/pyqgis_developer_cookbook/expressions.rst
@@ -96,7 +96,7 @@ The following example shows how to check if a given expression can be parsed cor
    exp = QgsExpression('1 + 1 = ')
    assert(exp.hasParserError())
 
-   assert(exp.parserErrorString() == '\nsyntax error, unexpected end of file')
+   assert(exp.parserErrorString() == '\nIncomplete expression. You might not have finished the full expression.')
 
 .. index:: Expressions; Evaluating