diff --git a/src/uifc/uifc32.c b/src/uifc/uifc32.c
index 173535e6a194536497d4258660146bc8b46a0994..450d3556bbc8ca7a9c3eb445f3e9243fcdf05ad9 100644
--- a/src/uifc/uifc32.c
+++ b/src/uifc/uifc32.c
@@ -47,6 +47,7 @@
 	#define mswait(x) Sleep(x)
 #endif
 #include <genwrap.h>	// for alloca()
+#include <datewrap.h>	// localtime_r()
 
 #include "ciolib.h"
 #include "uifc.h"