diff --git a/src/Symfony/Component/DependencyInjection/Compiler/AutowirePass.php b/src/Symfony/Component/DependencyInjection/Compiler/AutowirePass.php
index fcb986383c..985f3a50e1 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/AutowirePass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/AutowirePass.php
@@ -217,26 +217,24 @@ class AutowirePass implements CompilerPassInterface
 
         // is this already a type/class that is known to match multiple services?
         if (isset($this->ambiguousServiceTypes[$type])) {
-            $this->addServiceToAmbiguousType($id, $type);
+            $this->ambiguousServiceTypes[$type][] = $id;
 
             return;
         }
 
         // check to make sure the type doesn't match multiple services
-        if (isset($this->types[$type])) {
-            if ($this->types[$type] === $id) {
-                return;
-            }
-
-            // keep an array of all services matching this type
-            $this->addServiceToAmbiguousType($id, $type);
-
-            unset($this->types[$type]);
+        if (!isset($this->types[$type]) || $this->types[$type] === $id) {
+            $this->types[$type] = $id;
 
             return;
         }
 
-        $this->types[$type] = $id;
+        // keep an array of all services matching this type
+        if (!isset($this->ambiguousServiceTypes[$type])) {
+            $this->ambiguousServiceTypes[$type] = array($this->types[$type]);
+            unset($this->types[$type]);
+        }
+        $this->ambiguousServiceTypes[$type][] = $id;
     }
 
     /**
@@ -311,17 +309,6 @@ class AutowirePass implements CompilerPassInterface
         return $this->reflectionClasses[$id] = $reflector;
     }
 
-    private function addServiceToAmbiguousType($id, $type)
-    {
-        // keep an array of all services matching this type
-        if (!isset($this->ambiguousServiceTypes[$type])) {
-            $this->ambiguousServiceTypes[$type] = array(
-                $this->types[$type],
-            );
-        }
-        $this->ambiguousServiceTypes[$type][] = $id;
-    }
-
     /**
      * @param \ReflectionClass $reflectionClass
      *