diff --git a/core/reflection.jvm/src/kotlin/reflect/jvm/internal/KClassImpl.kt b/core/reflection.jvm/src/kotlin/reflect/jvm/internal/KClassImpl.kt
index 9acf0dcbd40..a7af316fe7e 100644
--- a/core/reflection.jvm/src/kotlin/reflect/jvm/internal/KClassImpl.kt
+++ b/core/reflection.jvm/src/kotlin/reflect/jvm/internal/KClassImpl.kt
@@ -316,7 +316,7 @@ internal class KClassImpl<T : Any>(
                 throw UnsupportedOperationException(
                     "This class is an internal synthetic class generated by the Kotlin compiler, such as an anonymous class " +
                             "for a lambda, a SAM wrapper, a callable reference, etc. It's not a Kotlin class or interface, so the reflection " +
-                            "library has no idea what declarations does it have. Please use Java reflection to inspect this class: $jClass"
+                            "library has no idea what declarations it has. Please use Java reflection to inspect this class: $jClass"
                 )
             }
             KotlinClassHeader.Kind.UNKNOWN -> {