diff --git a/src/compiler/crystal/semantic/bindings.cr b/src/compiler/crystal/semantic/bindings.cr
index 2fa50391d564..c866998dbb12 100644
--- a/src/compiler/crystal/semantic/bindings.cr
+++ b/src/compiler/crystal/semantic/bindings.cr
@@ -106,21 +106,19 @@ module Crystal
       @type
     end
 
-    def bind_to(node : ASTNode)
+    def bind_to(node : ASTNode) : Nil
       bind(node) do |dependencies|
         dependencies.push node
         node.add_observer self
-        node
       end
     end
 
-    def bind_to(nodes : Indexable)
+    def bind_to(nodes : Indexable) : Nil
       return if nodes.empty?
 
       bind do |dependencies|
         dependencies.concat nodes
         nodes.each &.add_observer self
-        nodes.first
       end
     end
 
@@ -134,13 +132,9 @@ module Crystal
 
       dependencies = @dependencies ||= [] of ASTNode
 
-      node = yield dependencies
+      yield dependencies
 
-      if dependencies.size == 1
-        new_type = node.type?
-      else
-        new_type = Type.merge dependencies
-      end
+      new_type = type_from_dependencies
       new_type = map_type(new_type) if new_type
 
       if new_type && (freeze_type = self.freeze_type)
@@ -155,6 +149,10 @@ module Crystal
       propagate
     end
 
+    def type_from_dependencies : Type?
+      Type.merge dependencies
+    end
+
     def unbind_from(nodes : Nil)
       # Nothing to do
     end
@@ -206,7 +204,7 @@ module Crystal
     def update(from = nil)
       return if @type && @type.same? from.try &.type?
 
-      new_type = Type.merge dependencies
+      new_type = type_from_dependencies
       new_type = map_type(new_type) if new_type
 
       if new_type && (freeze_type = self.freeze_type)