1 files changed, 1 insertions, 1 deletions
diff --git a/src/qdoc/tokenizer.cpp b/src/qdoc/tokenizer.cpp
index 3a1003b83..5f4f7cb80 100644
--- a/src/qdoc/tokenizer.cpp
+++ b/src/qdoc/tokenizer.cpp
@@ -501,7 +501,7 @@ void Tokenizer::initialize(const Config &config)
     if (!versionSym.isEmpty())
         versionX->setPattern("[ \t]*(?:" + QRegExp::escape(versionSym)
                              + ")[ \t]+\"([^\"]*)\"[ \t]*");
-    definedX = new QRegExp("defined ?\\(?([A-Z_0-9a-z]+) ?\\)");
+    definedX = new QRegExp("defined ?\\(?([A-Z_0-9a-z]+) ?\\)?");
 
     QStringList d = config.getStringList(CONFIG_DEFINES);
     d += "qdoc";