Index: core/src/document_format/ClustalWAlnFormat.cpp
===================================================================
--- core/src/document_format/ClustalWAlnFormat.cpp  (revision 1988)
+++ core/src/document_format/ClustalWAlnFormat.cpp  (working copy)
@@ -15,7 +15,7 @@
 /* TRANSLATOR GB2::ClustalWAlnFormat */    
 /* TRANSLATOR GB2::IOAdapter */    
 
-const QByteArray ClustalWAlnFormat::CLUSTAL_HEADER = "CLUSTAL W";
+const QByteArray ClustalWAlnFormat::CLUSTAL_HEADER = "CLUSTAL ";
 
 ClustalWAlnFormat::ClustalWAlnFormat(QObject* p) : DocumentFormat(p) 
 {
@@ -329,7 +329,7 @@
         return false;
     }
     QByteArray str(data, size);
-    if (!str.startsWith("CLUSTAL W")) {
+    if (!str.startsWith(CLUSTAL_HEADER)) {
         return false;
     }
     QTextStream s(str);