diff --git a/icu4c/source/i18n/astro.h b/icu4c/source/i18n/astro.h
index 65bbacf869..4aca3c2673 100644
--- a/icu4c/source/i18n/astro.h
+++ b/icu4c/source/i18n/astro.h
@@ -13,7 +13,6 @@
 #if !UCONFIG_NO_FORMATTING
 
 #include "gregoimp.h"  // for Math
-#include "stdio.h"  // for sprintf
 #include "unicode/unistr.h"
 
 /**