diff --git a/icu4c/source/test/intltest/restest.cpp b/icu4c/source/test/intltest/restest.cpp
index c54d314647..6a9d7cafac 100644
--- a/icu4c/source/test/intltest/restest.cpp
+++ b/icu4c/source/test/intltest/restest.cpp
@@ -144,7 +144,7 @@ randul()
 double
 randd()
 {
-    return ((double)randul()) / UINT32_MAX;
+    return (double)(randul() / UINT32_MAX);
 }
 
 /**