diff --git a/src/main/kotlin/com/emberjs/utils/EmberUtils.kt b/src/main/kotlin/com/emberjs/utils/EmberUtils.kt
index e764c7f1..df4e8c0e 100644
--- a/src/main/kotlin/com/emberjs/utils/EmberUtils.kt
+++ b/src/main/kotlin/com/emberjs/utils/EmberUtils.kt
@@ -269,7 +269,7 @@ class EmberUtils {
                     if (cls != null) {
                         return cls
                     }
-                    cls = inJs?.prevSibling?.children?.last() as? TypeScriptVariable
+                    cls = inJs?.prevSibling?.children?.lastOrNull() as? TypeScriptVariable
                     if (cls != null) {
                         return cls
                     }