diff --git a/include/verilated_std.sv b/include/verilated_std.sv
index 1c7e60e0e..354901753 100644
--- a/include/verilated_std.sv
+++ b/include/verilated_std.sv
@@ -26,93 +26,93 @@
 // verilator lint_off TIMESCALEMOD
 // verilator lint_off UNUSEDSIGNAL
 package std;
-    // The process class is not implemented, but it's predeclared here,
-    // so the linter accepts references to it.
-    typedef class process;
+   // The process class is not implemented, but it's predeclared here,
+   // so the linter accepts references to it.
+   typedef class process;
 
-    class mailbox #(type T);
-        protected int m_bound;
-        protected T m_queue[$];
+   class mailbox #(type T);
+      protected int m_bound;
+      protected T m_queue[$];
 
-        function new(int bound = 0);
-            m_bound = bound;
-        endfunction
+      function new(int bound = 0);
+         m_bound = bound;
+      endfunction
 
-        function int num();
-            return m_queue.size();
-        endfunction
+      function int num();
+         return m_queue.size();
+      endfunction
 
-        task put(T message);
-    `ifdef VERILATOR_TIMING
-            if (m_bound != 0)
-                wait (m_queue.size() < m_bound);
+      task put(T message);
+`ifdef VERILATOR_TIMING
+         if (m_bound != 0)
+           wait (m_queue.size() < m_bound);
+         m_queue.push_back(message);
+`endif
+      endtask
+
+      function int try_put(T message);
+         if (num() < m_bound) begin
             m_queue.push_back(message);
-    `endif
-        endtask
+            return 1;
+         end
+         return 0;
+      endfunction
 
-        function int try_put(T message);
-            if (num() < m_bound) begin
-                m_queue.push_back(message);
-                return 1;
-            end
-            return 0;
-        endfunction
+      task get(ref T message);
+`ifdef VERILATOR_TIMING
+         wait (m_queue.size() > 0);
+         message = m_queue.pop_front();
+`endif
+      endtask
 
-        task get(ref T message);
-    `ifdef VERILATOR_TIMING
-            wait (m_queue.size() > 0);
+      function int try_get(ref T message);
+         if (num() > 0) begin
             message = m_queue.pop_front();
-    `endif
-        endtask
+            return 1;
+         end
+         return 0;
+      endfunction
 
-        function int try_get(ref T message);
-            if (num() > 0) begin
-                message = m_queue.pop_front();
-                return 1;
-            end
-            return 0;
-        endfunction
+      task peek(ref T message);
+`ifdef VERILATOR_TIMING
+         wait (m_queue.size() > 0);
+         message = m_queue[0];
+`endif
+      endtask
 
-        task peek(ref T message);
-    `ifdef VERILATOR_TIMING
-            wait (m_queue.size() > 0);
+      function int try_peek(ref T message);
+         if (num() > 0) begin
             message = m_queue[0];
-    `endif
-        endtask
+            return 1;
+         end
+         return 0;
+      endfunction
+   endclass
 
-        function int try_peek(ref T message);
-            if (num() > 0) begin
-                message = m_queue[0];
-                return 1;
-            end
-            return 0;
-        endfunction
-    endclass
+   class semaphore;
+      protected int m_keyCount;
 
-    class semaphore;
-        protected int m_keyCount;
+      function new(int keyCount = 0);
+         m_keyCount = keyCount;
+      endfunction
 
-        function new(int keyCount = 0);
-            m_keyCount = keyCount;
-        endfunction
+      function void put(int keyCount = 1);
+         m_keyCount += keyCount;
+      endfunction
 
-        function void put(int keyCount = 1);
-            m_keyCount += keyCount;
-        endfunction
+      task get(int keyCount = 1);
+`ifdef VERILATOR_TIMING
+         wait (m_keyCount >= keyCount);
+         m_keyCount -= keyCount;
+`endif
+      endtask
 
-        task get(int keyCount = 1);
-    `ifdef VERILATOR_TIMING
-            wait (m_keyCount >= keyCount);
+      function int try_get(int keyCount = 1);
+         if (m_keyCount >= keyCount) begin
             m_keyCount -= keyCount;
-    `endif
-        endtask
-
-        function int try_get(int keyCount = 1);
-            if (m_keyCount >= keyCount) begin
-                m_keyCount -= keyCount;
-                return 1;
-            end
-            return 0;
-        endfunction
-    endclass
+            return 1;
+         end
+         return 0;
+      endfunction
+   endclass
 endpackage