diff --git a/.gitignore b/.gitignore
index 5c23ec8..4aa2884 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
 artefacts
-*.tar.gz
+*.tar.*
diff --git a/Makefile b/Makefile
index 16c3cc0..b3be621 100644
--- a/Makefile
+++ b/Makefile
@@ -40,4 +40,4 @@ ghdl-formal_${TAG}.tar.gz:
 
 clean:
 	rm -rf artefacts
-	rm -f ghdl-formal_*.tar.gz
+	rm -f ghdl-formal_*.tar.*