diff --git a/basement/Basement/Terminal/Size.hsc b/basement/Basement/Terminal/Size.hsc
index 7d18ea43..62c315e7 100644
--- a/basement/Basement/Terminal/Size.hsc
+++ b/basement/Basement/Terminal/Size.hsc
@@ -20,6 +20,9 @@ import           Graphics.Win32.Misc (getStdHandle, sTD_OUTPUT_HANDLE, StdHandle
 #include <windows.h>
 #elif defined FOUNDATION_SYSTEM_UNIX
 #include <sys/ioctl.h>
+#ifdef __sun
+#include <sys/termios.h>
+#endif
 #endif 
 
 #include <stdio.h>