diff --git a/reactor/API/src/jetbrains/mps/logic/reactor/program/Handler.java b/reactor/API/src/jetbrains/mps/logic/reactor/program/Handler.java
index 7dfffa25..5aaaa16f 100644
--- a/reactor/API/src/jetbrains/mps/logic/reactor/program/Handler.java
+++ b/reactor/API/src/jetbrains/mps/logic/reactor/program/Handler.java
@@ -28,6 +28,7 @@ public abstract class Handler {
 
     public abstract String name();
 
+    @Deprecated
     public abstract Iterable<ConstraintSymbol> primarySymbols();
 
     public abstract Iterable<Rule> rules();
diff --git a/reactor/Test/test/TestMatcher.kt b/reactor/Test/test/TestMatcher.kt
index ce5bdee8..7b24d2d1 100644
--- a/reactor/Test/test/TestMatcher.kt
+++ b/reactor/Test/test/TestMatcher.kt
@@ -184,13 +184,13 @@ class TestMatcher {
     @Test
     fun multipleHandlers() {
         programWithHandlers(
-            handler("handler1", listOf(ConstraintSymbol("foo", 0)),
+            handler("handler1", emptyList(),
                 rule("main1",
                     headKept(
                         constraint("foo")
                     ))
                 ),
-            handler("handler2", listOf(ConstraintSymbol("bar", 0)),
+            handler("handler2", emptyList(),
                 rule("main2",
                     headKept(
                         constraint("bar")