diff --git a/src/Lexer.h b/src/Lexer.h
index 6ecdd90989..02ec7470e1 100644
--- a/src/Lexer.h
+++ b/src/Lexer.h
@@ -138,12 +138,10 @@ public:
 	std::string const getString(bool trim = false) const;
 	///
 	docstring const getDocString(bool trim = false) const;
-	/** Get a long string, ended by the tag `endtoken'.
-	    This string can span several lines. The first line
-	    serves as a template for how many spaces the lines
-	    are indented. This much white space is skipped from
-	    each following line. This mechanism does not work
-	    perfectly if you use tabs.
+	/** Get a long string, ended by the tag `endtoken'. This string
+	    can span several lines. The first line serves as a template
+	    for what sequence of tabs and spaces make up the indentation.
+	    This prefix is skipped from each following line.
 	*/
 	docstring getLongString(docstring const & endtoken);