diff --git a/.gitignore b/.gitignore
index 0c80b392b55e..7de06a15370e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,6 +46,7 @@ drake.jar
 *.out
 pod-build
 build
+cmake-build*
 mlint_output.html
 .#*
 VALGRIND_OUTPUT.xml