diff --git a/src/stringtable.cpp b/src/stringtable.cpp
index 5453cead..f575dca1 100644
--- a/src/stringtable.cpp
+++ b/src/stringtable.cpp
@@ -324,6 +324,10 @@ size_t FStringTable::ProcessEscapes (char *iptr)
 // Finds a string by name and returns its value
 const char *FStringTable::operator[] (const char *name) const
 {
+	if (name == NULL)
+	{
+		return NULL;
+	}
 	DWORD bucket = MakeKey (name) & (HASH_SIZE - 1);
 	StringEntry *entry = Buckets[bucket];
 
diff --git a/src/svnrevision.h b/src/svnrevision.h
index a1aa17f9..eab958aa 100644
--- a/src/svnrevision.h
+++ b/src/svnrevision.h
@@ -3,5 +3,5 @@
 // This file was automatically generated by the
 // updaterevision tool. Do not edit by hand.
 
-#define ZD_SVN_REVISION_STRING "3400"
-#define ZD_SVN_REVISION_NUMBER 3400
+#define ZD_SVN_REVISION_STRING "3401"
+#define ZD_SVN_REVISION_NUMBER 3401