diff --git a/DiscordChatExporter.Core/Exporting/JsonMessageWriter.cs b/DiscordChatExporter.Core/Exporting/JsonMessageWriter.cs
index 2ffa4364..25420b75 100644
--- a/DiscordChatExporter.Core/Exporting/JsonMessageWriter.cs
+++ b/DiscordChatExporter.Core/Exporting/JsonMessageWriter.cs
@@ -140,7 +140,10 @@ internal class JsonMessageWriter(Stream stream, ExportContext context)
             );
 
             // Include canonical URL if a proxy URL is being used
-            if (!string.IsNullOrWhiteSpace(embedAuthor.IconProxyUrl))
+            if (
+                !string.IsNullOrWhiteSpace(embedAuthor.IconProxyUrl)
+                && !string.IsNullOrWhiteSpace(embedAuthor.IconUrl)
+            )
             {
                 _writer.WriteString("iconCanonicalUrl", embedAuthor.IconUrl);
             }
@@ -168,7 +171,10 @@ internal class JsonMessageWriter(Stream stream, ExportContext context)
             );
 
             // Include canonical URL if a proxy URL is being used
-            if (!string.IsNullOrWhiteSpace(embedImage.ProxyUrl))
+            if (
+                !string.IsNullOrWhiteSpace(embedImage.ProxyUrl)
+                && !string.IsNullOrWhiteSpace(embedImage.Url)
+            )
             {
                 _writer.WriteString("canonicalUrl", embedImage.Url);
             }
@@ -199,7 +205,10 @@ internal class JsonMessageWriter(Stream stream, ExportContext context)
             );
 
             // Include canonical URL if a proxy URL is being used
-            if (!string.IsNullOrWhiteSpace(embedVideo.ProxyUrl))
+            if (
+                !string.IsNullOrWhiteSpace(embedVideo.ProxyUrl)
+                && !string.IsNullOrWhiteSpace(embedVideo.Url)
+            )
             {
                 _writer.WriteString("canonicalUrl", embedVideo.Url);
             }
@@ -232,7 +241,10 @@ internal class JsonMessageWriter(Stream stream, ExportContext context)
             );
 
             // Include canonical URL if a proxy URL is being used
-            if (!string.IsNullOrWhiteSpace(embedFooter.IconProxyUrl))
+            if (
+                !string.IsNullOrWhiteSpace(embedFooter.IconProxyUrl)
+                && !string.IsNullOrWhiteSpace(embedFooter.IconUrl)
+            )
             {
                 _writer.WriteString("iconCanonicalUrl", embedFooter.IconUrl);
             }