diff --git a/composer.json b/composer.json
index 0bf41ffc2e..6e5747a3be 100644
--- a/composer.json
+++ b/composer.json
@@ -1,23 +1,25 @@
-{	
-    "name": "google/grpc-gcp",	
-    "description": "gRPC GCP library for channel management",	
-    "license": "Apache-2.0",	
-    "version": "0.1.4",	
-    "require": {	
-        "php": ">=5.5.0",	
-        "google/protobuf": "^v3.3.0",	
-        "grpc/grpc": "^v1.13.0",	
-        "google/auth": "^1.3",	
-        "psr/cache": "^1.0.1"	
-    },	
-    "require-dev": {	
-        "phpunit/phpunit": "4.8.36",	
-        "google/cloud-spanner": "^1.7"	
-    },	
-    "autoload": {	
-        "psr-4": {	
-            "Grpc\\Gcp\\": "src/",	
-            "": "src/generated/"	
-        }	
-    }	
+{
+    "name": "google/grpc-gcp",
+    "description": "gRPC GCP library for channel management",
+    "license": "Apache-2.0",
+    "version": "0.1.4",
+    "require": {
+        "php": ">=5.5.0",
+        "google/protobuf": "^v3.3.0",
+        "grpc/grpc": "^v1.13.0",
+        "google/auth": "^1.3",
+        "psr/cache": "^1.0.1"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "4.8.36",
+        "google/cloud-spanner": "^1.7"
+    },
+    "autoload": {
+        "psr-4": {
+            "Grpc\\Gcp\\": "src/"
+        },
+        "classmap": [
+            "src/generated/"
+        ]
+    }
 }