diff --git a/include/androidfw/ResourceTypes.h b/include/androidfw/ResourceTypes.h
index f2d85b4..bf993f4 100644
--- a/include/androidfw/ResourceTypes.h
+++ b/include/androidfw/ResourceTypes.h
@@ -118,9 +118,9 @@
                        yDivsOffset(0), colorsOffset(0) { }
 
     int8_t wasDeserialized;
-    int8_t numXDivs;
-    int8_t numYDivs;
-    int8_t numColors;
+    uint8_t numXDivs;
+    uint8_t numYDivs;
+    uint8_t numColors;
 
     // The offset (from the start of this structure) to the xDivs & yDivs
     // array for this 9patch. To get a pointer to this array, call