diff --git a/ios/library/WhirlyGlobe-MaplyComponent/src/MaplySphericalQuadEarthWithTexGroup.mm b/ios/library/WhirlyGlobe-MaplyComponent/src/MaplySphericalQuadEarthWithTexGroup.mm
index aa0f592b76..528840207d 100644
--- a/ios/library/WhirlyGlobe-MaplyComponent/src/MaplySphericalQuadEarthWithTexGroup.mm
+++ b/ios/library/WhirlyGlobe-MaplyComponent/src/MaplySphericalQuadEarthWithTexGroup.mm
@@ -52,7 +52,7 @@ - (bool)startLayer:(WhirlyKitLayerThread *)layerThread scene:(WhirlyKit::Scene *
     
     earthLayer = [[WhirlyKitSphericalEarthQuadLayer alloc] initWithInfo:texGroupName renderer:renderer];
     if (!earthLayer)
-        return nil;
+        return false;
     [layerThread addLayer:earthLayer];
     
     return true;