diff --git a/configure.ac b/configure.ac
index dcbc130f6..f55c75896 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1983,6 +1983,7 @@ hw/xfree86/os-support/misc/Makefile
 hw/xfree86/os-support/linux/Makefile
 hw/xfree86/os-support/lynxos/Makefile
 hw/xfree86/os-support/sco/Makefile
+hw/xfree86/os-support/solaris/Makefile
 hw/xfree86/os-support/sysv/Makefile
 hw/xfree86/os-support/usl/Makefile
 hw/xfree86/parser/Makefile