diff --git a/idea/src/org/jetbrains/kotlin/idea/script/configuration/MultipleScriptDefinitionsChecker.kt b/idea/src/org/jetbrains/kotlin/idea/script/configuration/MultipleScriptDefinitionsChecker.kt
index 04f7ff323fa..9ba777f5876 100644
--- a/idea/src/org/jetbrains/kotlin/idea/script/configuration/MultipleScriptDefinitionsChecker.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/script/configuration/MultipleScriptDefinitionsChecker.kt
@@ -39,6 +39,7 @@ class MultipleScriptDefinitionsChecker(private val project: Project) : EditorNot
 
         if (!ktFile.isScript()) return null
         if (KotlinScriptingSettings.getInstance(ktFile.project).suppressDefinitionsCheck) return null
+        if (!ScriptDefinitionsManager.getInstance(ktFile.project).isReady()) return null
 
         val allApplicableDefinitions = ScriptDefinitionsManager.getInstance(project)
             .getAllDefinitions()