diff --git a/cross-project-tests/debuginfo-tests/dexter/Commands.md b/cross-project-tests/debuginfo-tests/dexter/Commands.md
--- a/cross-project-tests/debuginfo-tests/dexter/Commands.md
+++ b/cross-project-tests/debuginfo-tests/dexter/Commands.md
@@ -101,13 +101,16 @@
 
 ---
 ## DexExpectStepOrder
-    DexExpectStepOrder(*order)
+    DexExpectStepOrder(*order [,**on_line])
 
     Arg list:
       order (int): One or more indices.
 
+    Keyword args:
+        on_line (int): Expect this line to be stepped on in the order given.
+
 ### Description
-Expect the line every `DexExpectStepOrder` is found on to be stepped on in
+Expect the line every `DexExpectStepOrder` is found on, or given from `on_line`, to be stepped on in
 `order`. Each instance must have a set of unique ascending indices.
 
 ### Heuristic
diff --git a/cross-project-tests/debuginfo-tests/dexter/dex/command/commands/DexExpectStepOrder.py b/cross-project-tests/debuginfo-tests/dexter/dex/command/commands/DexExpectStepOrder.py
--- a/cross-project-tests/debuginfo-tests/dexter/dex/command/commands/DexExpectStepOrder.py
+++ b/cross-project-tests/debuginfo-tests/dexter/dex/command/commands/DexExpectStepOrder.py
@@ -18,10 +18,16 @@
     See Commands.md for more info.
     """
 
-    def __init__(self, *args):
+    def __init__(self, *args, **kwargs):
         if not args:
             raise TypeError('Need at least one order number')
 
+        if 'on_line' in kwargs:
+            try:
+                on_line = kwargs.pop('on_line')
+                self.on_line = int(on_line)
+            except ValueError:
+                raise ValueError('on_line value \'{0}\' cannot be parsed to an integer'.format(on_line))
         self.sequence = [int(x) for x in args]
         super(DexExpectStepOrder, self).__init__()
 
@@ -29,6 +35,9 @@
     def get_name():
         return __class__.__name__
 
+    def get_line(self):
+        return self.on_line if hasattr(self, 'on_line') else self.lineno
+
     def eval(self, step_info):
         return {'DexExpectStepOrder': ValueIR(expression=str(step_info.current_location.lineno),
                       value=str(step_info.step_index), type_name=None,
diff --git a/cross-project-tests/debuginfo-tests/dexter/dex/debugger/DebuggerControllers/ControllerHelpers.py b/cross-project-tests/debuginfo-tests/dexter/dex/debugger/DebuggerControllers/ControllerHelpers.py
--- a/cross-project-tests/debuginfo-tests/dexter/dex/debugger/DebuggerControllers/ControllerHelpers.py
+++ b/cross-project-tests/debuginfo-tests/dexter/dex/debugger/DebuggerControllers/ControllerHelpers.py
@@ -19,8 +19,8 @@
                for f in source_files)
 
 def have_hit_line(watch, loc):
-  if hasattr(watch, '_on_line'):
-    return watch._on_line == loc.lineno
+  if hasattr(watch, 'on_line'):
+    return watch.on_line == loc.lineno
   elif hasattr(watch, '_from_line'):
     return watch._from_line <= loc.lineno and watch._to_line >= loc.lineno
   elif watch.lineno == loc.lineno:
diff --git a/cross-project-tests/debuginfo-tests/dexter/dex/heuristic/Heuristic.py b/cross-project-tests/debuginfo-tests/dexter/dex/heuristic/Heuristic.py
--- a/cross-project-tests/debuginfo-tests/dexter/dex/heuristic/Heuristic.py
+++ b/cross-project-tests/debuginfo-tests/dexter/dex/heuristic/Heuristic.py
@@ -253,7 +253,7 @@
             cmds = steps.commands['DexExpectStepOrder']
 
             # Form a list of which line/cmd we _should_ have seen
-            cmd_num_lst = [(x, c.lineno) for c in cmds
+            cmd_num_lst = [(x, c.get_line()) for c in cmds
                                          for x in c.sequence]
             # Order them by the sequence number
             cmd_num_lst.sort(key=lambda t: t[0])
diff --git a/cross-project-tests/debuginfo-tests/dexter/feature_tests/commands/perfect/expect_step_order.cpp b/cross-project-tests/debuginfo-tests/dexter/feature_tests/commands/perfect/expect_step_order.cpp
--- a/cross-project-tests/debuginfo-tests/dexter/feature_tests/commands/perfect/expect_step_order.cpp
+++ b/cross-project-tests/debuginfo-tests/dexter/feature_tests/commands/perfect/expect_step_order.cpp
@@ -9,8 +9,16 @@
 
 int main()
 {
-  volatile int x = 1; // DexExpectStepOrder(1)
-  volatile int y = 1; // DexExpectStepOrder(2)
-  volatile int z = 1; // DexExpectStepOrder(3)
+  volatile int a = 1; // DexExpectStepOrder(1)
+  volatile int b = 1; // DexExpectStepOrder(2)
+  volatile int c = 1; // DexExpectStepOrder(3)
+
+  volatile int x = 1;
+  volatile int y = 1;
+  volatile int z = 1;
   return 0;
 }
+
+// DexExpectStepOrder(4, on_line=16);
+// DexExpectStepOrder(5, on_line=17);
+// DexExpectStepOrder(6, on_line=18);