diff --git a/.gitignore b/.gitignore
index 1a06c65bc..5bcab6110 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,16 @@ build*/
 #except for the real one
 !build/
 
+# in-place build
+build/Makefile
+build/CMakeCache.txt
+build/cmake_install.cmake
+build/CMakeFiles
+build/doc
+build/bin
+build/library
+build/tools
+
 #ignore Kdevelop stuff
 .kdev4
 
@@ -30,4 +40,4 @@ dfhack/python/PyDFHack.egg-info
 dfhack/python/build
 dfhack/python/dist
 
-/cmakeall.bat
\ No newline at end of file
+/cmakeall.bat