diff --git a/android/src/main/java/io/sentry/RNSentryModule.java b/android/src/main/java/io/sentry/RNSentryModule.java
index df124ee805..2aa66489cf 100644
--- a/android/src/main/java/io/sentry/RNSentryModule.java
+++ b/android/src/main/java/io/sentry/RNSentryModule.java
@@ -241,7 +241,8 @@ public void captureEvent(ReadableMap event) {
 
         if (castEvent.hasKey("tags")) {
             for (Map.Entry<String, Object> entry : castEvent.getMap("tags").toHashMap().entrySet()) {
-                eventBuilder.withTag(entry.getKey(), entry.getValue().toString());
+                String tagValue = entry.getValue() != null ? entry.getValue().toString() : "INVALID_TAG";
+                eventBuilder.withTag(entry.getKey(), tagValue);
             }
         }