diff --git a/.gitignore b/.gitignore
index 35eff11..6a3ef10 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,9 @@ premake5.tar.gz
 *.vcxproj*
 .vs
 
+# default cmake build dir
+build/
+
 #binary directories
 bin/
 obj/