diff --git a/BUILD.gn b/BUILD.gn
index 25b68b4..c19b3bd 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -910,6 +910,11 @@
       "tools/sk_tool_utils_font.cpp",
       "tools/timer/Timer.cpp",
     ]
+    libs = []
+    if (is_ios) {
+      sources += [ "tools/ios_utils.m" ]
+      libs += [ "Foundation.framework" ]
+    }
     deps = [
       ":common_flags",
       ":flags",