diff --git a/libical/doc/.cvsignore b/libical/doc/.cvsignore
index bbc8ba00d1..dc4caac801 100644
--- a/libical/doc/.cvsignore
+++ b/libical/doc/.cvsignore
@@ -1,3 +1,4 @@
+Makefile.in
 Makefile
 .deps
 .libs
diff --git a/libical/examples/.cvsignore b/libical/examples/.cvsignore
index 14459733c2..194ade0e6c 100644
--- a/libical/examples/.cvsignore
+++ b/libical/examples/.cvsignore
@@ -1,3 +1,4 @@
+Makefile.in
 Makefile
 .deps
 .libs
diff --git a/libical/src/.cvsignore b/libical/src/.cvsignore
index bbc8ba00d1..dc4caac801 100644
--- a/libical/src/.cvsignore
+++ b/libical/src/.cvsignore
@@ -1,3 +1,4 @@
+Makefile.in
 Makefile
 .deps
 .libs