diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip36SensitiveContent/ContentWarningTag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip36SensitiveContent/ContentWarningTag.kt
index af4214f66..200fb0481 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip36SensitiveContent/ContentWarningTag.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip36SensitiveContent/ContentWarningTag.kt
@@ -36,7 +36,7 @@ class ContentWarningTag(
 
         fun parse(tags: Array<String>): ContentWarningTag? {
             ensure(tags[0] == TAG_NAME) { return null }
-            return ContentWarningTag(tags.getOrNull(1).ifBlank { null })
+            return ContentWarningTag(tags.getOrNull(1)?.ifBlank { null })
         }
 
         fun assemble() = arrayOfNotNull(TAG_NAME)