diff --git a/openai-core/src/commonMain/kotlin/com.aallam.openai.api/message/MessageContent.kt b/openai-core/src/commonMain/kotlin/com.aallam.openai.api/message/MessageContent.kt
index d0da1df1..b7dd8bed 100644
--- a/openai-core/src/commonMain/kotlin/com.aallam.openai.api/message/MessageContent.kt
+++ b/openai-core/src/commonMain/kotlin/com.aallam.openai.api/message/MessageContent.kt
@@ -107,7 +107,7 @@ public data class FileCitation(
     /**
      * The specific quote in the file
      */
-    @SerialName("quote") val quote: String,
+    @SerialName("quote") val quote: String? = null,
 )
 
 /**