diff --git a/Circular_kernel_3/demo/Circular_kernel_3/demo_circle.cpp b/Circular_kernel_3/demo/Circular_kernel_3/demo_circle.cpp
index 0bf4ddac739..6bc4ba12ee0 100644
--- a/Circular_kernel_3/demo/Circular_kernel_3/demo_circle.cpp
+++ b/Circular_kernel_3/demo/Circular_kernel_3/demo_circle.cpp
@@ -59,9 +59,8 @@ int main (int argc, char** argv) {
 
 #include <iostream>
 
-int main(int, char*)
+int main()
 {
-
   std::cout << "Sorry, this demo needs QT ..." << std::endl;
   return (0);
 }