diff --git a/tests/core/.gitignore b/tests/core/.gitignore
index cd013e188..2a4e21679 100644
--- a/tests/core/.gitignore
+++ b/tests/core/.gitignore
@@ -1,3 +1,4 @@
+*.bmp
 *.zip
 *.png
 math_big_test_library.*
\ No newline at end of file