diff --git a/compiler/plugin-api/src/org/jetbrains/kotlin/compiler/plugin/CommandLineProcessor.kt b/compiler/plugin-api/src/org/jetbrains/kotlin/compiler/plugin/CommandLineProcessor.kt
index 8d5645b814c..73f03e1cfaa 100644
--- a/compiler/plugin-api/src/org/jetbrains/kotlin/compiler/plugin/CommandLineProcessor.kt
+++ b/compiler/plugin-api/src/org/jetbrains/kotlin/compiler/plugin/CommandLineProcessor.kt
@@ -22,6 +22,6 @@ public trait CommandLineProcessor {
     public val pluginId: String
     public val pluginOptions: Collection<CliOption>
 
-    // throws(CliOptionProcessingException::class)
+    throws(CliOptionProcessingException::class)
     public fun processOption(option: CliOption, value: String, configuration: CompilerConfiguration)
 }
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