diff --git a/icu4c/source/samples/cal/cal.c b/icu4c/source/samples/cal/cal.c
index 02c05e264ac..2d805e435c2 100644
--- a/icu4c/source/samples/cal/cal.c
+++ b/icu4c/source/samples/cal/cal.c
@@ -20,7 +20,6 @@
 #include "unicode/uloc.h"
 #include "unicode/udat.h"
 #include "unicode/ucal.h"
-#include "unicode/ures.h"
 #include "unicode/ustring.h"
 #include "unicode/uclean.h"