diff --git a/.gitignore b/.gitignore
index dae24ae39fe854c5a66a81a10302bd7fa23c5d4e..683af7da7c0f463be93ed554281a128c61264381 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@ build/sphere/*
 build/testing/*
 build/trapping/*
 build/libnptm/*
+containers/singularity/*.sif
 doc/build/*
 src/*/objects/*
 src/*/dynobjects/*