diff --git a/doc/doxygen.cfg b/doc/doxygen.cfg
index 65d5fb50..bfbfcab3 100644
--- a/doc/doxygen.cfg
+++ b/doc/doxygen.cfg
@@ -4,7 +4,7 @@
 # Project related configuration options
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING      = UTF-8
-PROJECT_NAME           = "Notmuch 0.17"
+PROJECT_NAME           = "Notmuch 0.18"
 PROJECT_NUMBER         =
 PROJECT_BRIEF          =
 PROJECT_LOGO           =