diff --git a/dv/uvm/core_ibex/common/ibex_mem_intf_agent/ibex_mem_intf_slave_seq_lib.sv b/dv/uvm/core_ibex/common/ibex_mem_intf_agent/ibex_mem_intf_slave_seq_lib.sv
index 681332bf..7da6780a 100644
--- a/dv/uvm/core_ibex/common/ibex_mem_intf_agent/ibex_mem_intf_slave_seq_lib.sv
+++ b/dv/uvm/core_ibex/common/ibex_mem_intf_agent/ibex_mem_intf_slave_seq_lib.sv
@@ -84,7 +84,7 @@ class ibex_mem_intf_slave_seq extends uvm_sequence #(ibex_mem_intf_seq_item);
     end
   endtask : body
 
-  virtual function inject_error();
+  virtual function void inject_error();
     this.enable_error = 1'b1;
   endfunction