diff --git a/CMakeLists.txt b/CMakeLists.txt
index c64ac897b..95f1f28d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,12 +14,13 @@ set(PROJECT_NAME_CAPITALIZED "Minetest")
 set(VERSION_MAJOR 0)
 set(VERSION_MINOR 4)
 set(VERSION_PATCH 17)
+set(VERSION_TWEAK 1)
 set(VERSION_EXTRA "" CACHE STRING "Stuff to append to version string")
 
 # Change to false for releases
 set(DEVELOPMENT_BUILD FALSE)
 
-set(VERSION_STRING "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
+set(VERSION_STRING "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}.${VERSION_TWEAK}")
 if(VERSION_EXTRA)
 	set(VERSION_STRING ${VERSION_STRING}-${VERSION_EXTRA})
 elseif(DEVELOPMENT_BUILD)
diff --git a/src/cmake_config.h.in b/src/cmake_config.h.in
index 4b731020a..9a57d3de8 100644
--- a/src/cmake_config.h.in
+++ b/src/cmake_config.h.in
@@ -8,6 +8,7 @@
 #define VERSION_MAJOR @VERSION_MAJOR@
 #define VERSION_MINOR @VERSION_MINOR@
 #define VERSION_PATCH @VERSION_PATCH@
+#define VERSION_TWEAK @VERSION_TWEAK@
 #define VERSION_EXTRA "@VERSION_EXTRA@"
 #define VERSION_STRING "@VERSION_STRING@"
 #define PRODUCT_VERSION_STRING "@VERSION_MAJOR@.@VERSION_MINOR@"