diff --git a/src/vim.h b/src/vim.h
index 3f01ab7..1555def 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -101,6 +101,9 @@
 # endif
 # ifndef FEAT_CLIPBOARD
 #  define FEAT_CLIPBOARD
+#  if defined(FEAT_SMALL) && !defined(FEAT_MOUSE)
+#   define FEAT_MOUSE
+#  endif
 # endif
 #endif
 #if defined(MACOS_X) || defined(MACOS_CLASSIC)