diff --git a/src/c/arch/unix/cursesw/dpy.c b/src/c/arch/unix/cursesw/dpy.c
index e9931bd..6345c89 100644
--- a/src/c/arch/unix/cursesw/dpy.c
+++ b/src/c/arch/unix/cursesw/dpy.c
@@ -12,6 +12,8 @@
 
 #define KEY_TIMEOUT (KEY_MAX + 1)
 
+typedef uint64_t u_int64_t;
+
 #if defined A_ITALIC
 static bool has_italics = false;
 #endif