diff --git a/.gitignore b/.gitignore
index ace5d8203e2..1e773c9b1cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,6 @@ doc/python
 include/Gaffer/Version.h
 contrib/openColorIOPandemonium/luts/*.spi1d
 contrib/openColorIOPandemonium/luts/*.cube
+
+# clang compile commands
+compile_commands.json