diff --git a/.gitignore b/.gitignore
index 8740f635..adb2990a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 aclocal.m4*
 aclocal.m4.orig*
+acinclude.m4
 autom4te*
 *~
 Makefile
@@ -22,4 +23,4 @@ dist
 # Ignore files created during unit tests
 **/MSVisualStudio/**/*.mps
 **/MSVisualStudio/**/*.lp
-**/MSVisualStudio/**/*.out
\ No newline at end of file
+**/MSVisualStudio/**/*.out