diff --git a/.gitignore b/.gitignore
index 88308fb..08e456b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 # suppress compiler/linker output
 *.[oa]
 *.obj
+*.gcno
 [Dd]ebug/
 [Rr]elease/