1 files changed, 6 insertions, 1 deletions
diff --git a/platform/darwin/src/MGLImageSource.mm b/platform/darwin/src/MGLImageSource.mm
index 421cc7a155..2d2f090079 100644
--- a/platform/darwin/src/MGLImageSource.mm
+++ b/platform/darwin/src/MGLImageSource.mm
@@ -1,6 +1,7 @@
 #import "MGLImageSource.h"
 
 #import "MGLGeometry_Private.h"
+#import "MGLLoggingConfiguration_Private.h"
 #import "MGLSource_Private.h"
 #import "MGLTileSource_Private.h"
 #import "NSURL+MGLAdditions.h"
@@ -99,7 +100,11 @@
 }
 
 - (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;
 }