1 files changed, 6 insertions, 1 deletions
diff --git a/platform/darwin/src/MGLRasterTileSource.mm b/platform/darwin/src/MGLRasterTileSource.mm
index b31cee296f..80b21cc7dd 100644
--- a/platform/darwin/src/MGLRasterTileSource.mm
+++ b/platform/darwin/src/MGLRasterTileSource.mm
@@ -1,5 +1,6 @@
 #import "MGLRasterTileSource_Private.h"
 
+#import "MGLLoggingConfiguration_Private.h"
 #import "MGLMapView_Private.h"
 #import "MGLSource_Private.h"
 #import "MGLTileSource_Private.h"
@@ -72,7 +73,11 @@ static const CGFloat MGLRasterTileSourceRetinaTileSize = 512;
 }
 
 - (NSString *)attributionHTMLString {
-    MGLAssertStyleSourceIsValid();
+    if (!self.rawSource) {
+        MGLAssert(0, @"Source with identifier `%@` was invalidated after a style change", self.identifier);
+        return nil;
+    }
+
     auto attribution = self.rawSource->getAttribution();
     return attribution ? @(attribution->c_str()) : nil;
 }