diff --git a/tests/UnicodeTest.cpp b/tests/UnicodeTest.cpp
index 04fee49..1293fb6 100644
--- a/tests/UnicodeTest.cpp
+++ b/tests/UnicodeTest.cpp
@@ -69,9 +69,9 @@
     paint.setTextEncoding(SkPaint::kUTF32_TextEncoding);
     int count32 = paint.textToGlyphs(text32, len32, glyphs32);
 
-    REPORTER_ASSERT(reporter, len8 == count8);
-    REPORTER_ASSERT(reporter, len8 == count16);
-    REPORTER_ASSERT(reporter, len8 == count32);
+    REPORTER_ASSERT(reporter, (int)len8 == count8);
+    REPORTER_ASSERT(reporter, (int)len8 == count16);
+    REPORTER_ASSERT(reporter, (int)len8 == count32);
     
     REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs16, count8 * sizeof(uint16_t)));
     REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs32, count8 * sizeof(uint16_t)));