diff --git a/doxygenConfig b/doxygenConfig
index 2f63edb02a1..01cc9d0ba5b 100644
--- a/doxygenConfig
+++ b/doxygenConfig
@@ -3,7 +3,7 @@
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = MongoDB
-PROJECT_NUMBER         = 1.7.3
+PROJECT_NUMBER         = 1.7.4-pre-
 OUTPUT_DIRECTORY       = docs/doxygen
 CREATE_SUBDIRS         = NO
 OUTPUT_LANGUAGE        = English
diff --git a/util/version.cpp b/util/version.cpp
index cf9a7da81a1..c8aa9670b9d 100644
--- a/util/version.cpp
+++ b/util/version.cpp
@@ -14,7 +14,7 @@ namespace mongo {
     // mongo processes version support
     //
 
-    const char versionString[] = "1.7.3";
+    const char versionString[] = "1.7.4-pre-";
 
     string mongodVersion() {
         stringstream ss;