diff --git a/libbuild2-autoconf-tests/.gitignore b/libbuild2-autoconf-tests/.gitignore
index b1ac426..f8a7a34 100644
--- a/libbuild2-autoconf-tests/.gitignore
+++ b/libbuild2-autoconf-tests/.gitignore
@@ -12,6 +12,7 @@
 *.pcm
 *.ifc
 *.so
+*.dylib
 *.dll
 *.a
 *.lib
diff --git a/libbuild2-autoconf/.gitignore b/libbuild2-autoconf/.gitignore
index 6435b97..1c363a0 100644
--- a/libbuild2-autoconf/.gitignore
+++ b/libbuild2-autoconf/.gitignore
@@ -12,6 +12,7 @@
 *.pcm
 *.ifc
 *.so
+*.dylib
 *.dll
 *.a
 *.lib