diff --git a/lib/tfw/components/commands_equal.py b/lib/tfw/components/commands_equal.py
index 64ea20c..d58c064 100644
--- a/lib/tfw/components/commands_equal.py
+++ b/lib/tfw/components/commands_equal.py
@@ -7,14 +7,22 @@ from tfw.decorators.lazy_property import lazy_property
 
 
 class CommandsEqual:
-    def __init__(self, command_1, command_2, fuzzyness=1):
+    def __init__(self, command_1, command_2, fuzzyness=1, must_begin_similarly=True):
         self.command_1 = split(command_1)
         self.command_2 = split(command_2)
         self.fuzzyness = fuzzyness
+        self.must_begin_similarly = must_begin_similarly
 
     def __bool__(self):
+        if self.must_begin_similarly and not self.beginnings_are_equal:
+            return False
+
         return self.similarity >= self.fuzzyness
 
+    @lazy_property
+    def beginnings_are_equal(self):
+        return self.command_1[0] == self.command_2[0]
+
     @lazy_property
     def similarity(self):
         parts_1 = set(self.command_1)