diff --git a/.gitignore b/.gitignore
index 6e98286..ddcf4db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,8 @@ release
 /Makefile.in
 /aclocal.m4
 /autom4te.cache/
+/build-aux/config.guess
+/build-aux/config.sub
 /build-aux/install-sh
 /build-aux/missing
 /build-aux/tap-driver.sh
diff --git a/autogen b/autogen
index 7701af6..a03c6fd 100755
--- a/autogen
+++ b/autogen
@@ -13,6 +13,8 @@ try mkdir -p build-aux/m4
 # Remove the files to truly force them to be updated.
 try rm -f \
     aclocal.m4 \
+    build-aux/config.guess \
+    build-aux/config.sub \
     build-aux/install-sh \
     build-aux/missing \
     build-aux/tap-driver.sh \