diff --git a/.gitignore b/.gitignore
index 57094ef..83fc7cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -66,6 +66,7 @@ src/ctulimit/ctulimit
 src/cterror/cterror
 test/pfiles/
 test/caldb/
+test/iactdata_test
 test/*.fits
 test/*.dat
 test/*.xml