diff --git a/make/modules/java.prefs/Lib.gmk b/make/modules/java.prefs/Lib.gmk
index 033768ffa1d..25ac6c0b0cb 100644
--- a/make/modules/java.prefs/Lib.gmk
+++ b/make/modules/java.prefs/Lib.gmk
@@ -29,8 +29,8 @@ include LibCommon.gmk
 ## Build libprefs
 ################################################################################
 
-# libprefs on macosx does not use the unix code
-ifeq ($(call isTargetOs, macosx), true)
+# libprefs on macosx or ios does not use the unix code
+ifeq ($(call isTargetOs, macosx ios), true)
   LIBPREFS_EXCLUDE_SRC_PATTERNS := /unix/
 endif