diff --git a/lab2CA.srcs/sources_1/new/BasicModules.v b/lab2CA.srcs/sources_1/new/BasicModules.v
index e646d43..7fdd1b6 100644
--- a/lab2CA.srcs/sources_1/new/BasicModules.v
+++ b/lab2CA.srcs/sources_1/new/BasicModules.v
@@ -965,7 +965,7 @@ module sign_extend_2bit(
     input wire [1:0] A,
     output wire [8:0] B);
 
-    B = {{7{A[1]}},A};
+    assign B = {{7{A[1]}},A};
 
 endmodule