diff --git a/Examples/SDWebImage Demo.xcodeproj/project.pbxproj b/Examples/SDWebImage Demo.xcodeproj/project.pbxproj
index 5f85d8bd..fbad37b4 100644
--- a/Examples/SDWebImage Demo.xcodeproj/project.pbxproj	
+++ b/Examples/SDWebImage Demo.xcodeproj/project.pbxproj	
@@ -557,7 +557,7 @@
 			};
 			buildConfigurationList = 5376128F155AB74D005750A4 /* Build configuration list for PBXProject "SDWebImage Demo" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
diff --git a/SDWebImage.xcodeproj/project.pbxproj b/SDWebImage.xcodeproj/project.pbxproj
index ef29fba9..ff59b89b 100644
--- a/SDWebImage.xcodeproj/project.pbxproj
+++ b/SDWebImage.xcodeproj/project.pbxproj
@@ -923,10 +923,11 @@
 			};
 			buildConfigurationList = 53922D69148C55810056699D /* Build configuration list for PBXProject "SDWebImage" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
+				Base,
 			);
 			mainGroup = 53922D64148C55810056699D;
 			productRefGroup = 53922D70148C55820056699D /* Products */;
diff --git a/Tests/SDWebImage Tests.xcodeproj/project.pbxproj b/Tests/SDWebImage Tests.xcodeproj/project.pbxproj
index 87dca370..1e3d9d5d 100644
--- a/Tests/SDWebImage Tests.xcodeproj/project.pbxproj	
+++ b/Tests/SDWebImage Tests.xcodeproj/project.pbxproj	
@@ -327,10 +327,11 @@
 			};
 			buildConfigurationList = DA248D491954721A00390AB0 /* Build configuration list for PBXProject "SDWebImage Tests" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
+				Base,
 			);
 			mainGroup = DA248D451954721A00390AB0;
 			productRefGroup = DA248D54195472AA00390AB0 /* Products */;