diff --git a/compiler/src/prog8/ast/processing/AstChecker.kt b/compiler/src/prog8/ast/processing/AstChecker.kt
index 0c9a1d852..19a2f05b2 100644
--- a/compiler/src/prog8/ast/processing/AstChecker.kt
+++ b/compiler/src/prog8/ast/processing/AstChecker.kt
@@ -896,7 +896,7 @@ internal class AstChecker(private val program: Program,
 
         val error = VerifyFunctionArgTypes.checkTypes(functionCall, functionCall.definingScope(), program)
         if(error!=null)
-            errors.err(error, functionCall.args.first().position)
+            errors.err(error, functionCall.position)
 
         super.visit(functionCall)
     }