diff --git a/CocoaSecurity.xcodeproj/project.pbxproj b/CocoaSecurity.xcodeproj/project.pbxproj
index db2159d..ea7d8dc 100644
--- a/CocoaSecurity.xcodeproj/project.pbxproj
+++ b/CocoaSecurity.xcodeproj/project.pbxproj
@@ -187,7 +187,7 @@
 		2113922F16EAD6AF00AFDF87 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0460;
+				LastUpgradeCheck = 0500;
 				TargetAttributes = {
 					21BB8A2C17FEA0EC0032C38C = {
 						TestTargetID = 2113923616EAD6AF00AFDF87;
@@ -349,7 +349,6 @@
 		21BB8A3E17FEA0EC0032C38C /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_INCLUDING_64_BIT)";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
@@ -379,7 +378,6 @@
 		21BB8A3F17FEA0EC0032C38C /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_INCLUDING_64_BIT)";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
diff --git a/CocoaSecurity/CocoaSecurity.m b/CocoaSecurity/CocoaSecurity.m
index 16a5564..038d20d 100644
--- a/CocoaSecurity/CocoaSecurity.m
+++ b/CocoaSecurity/CocoaSecurity.m
@@ -52,12 +52,12 @@
     }
     
     // setup output buffer
-	size_t bufferSize = [data length] + kCCBlockSizeAES128;
-	void *buffer = malloc(bufferSize);
+    size_t bufferSize = [data length] + kCCBlockSizeAES128;
+    void *buffer = malloc(bufferSize);
     
     // do encrypt
-	size_t encryptedSize = 0;
-	CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,
+    size_t encryptedSize = 0;
+    CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,
                                           kCCAlgorithmAES128,
                                           kCCOptionPKCS7Padding,
                                           [key bytes],     // Key
@@ -68,7 +68,7 @@
                                           buffer,
                                           bufferSize,
                                           &encryptedSize);
-	if (cryptStatus == kCCSuccess) {
+    if (cryptStatus == kCCSuccess) {
         CocoaSecurityResult *result = [[CocoaSecurityResult alloc] initWithBytes:buffer length:encryptedSize];
         free(buffer);
         
@@ -121,12 +121,12 @@
     }
     
     // setup output buffer
-	size_t bufferSize = [data length] + kCCBlockSizeAES128;
-	void *buffer = malloc(bufferSize);
+    size_t bufferSize = [data length] + kCCBlockSizeAES128;
+    void *buffer = malloc(bufferSize);
     
     // do encrypt
-	size_t encryptedSize = 0;
-	CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt,
+    size_t encryptedSize = 0;
+    CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt,
                                           kCCAlgorithmAES128,
                                           kCCOptionPKCS7Padding,
                                           [key bytes],     // Key
@@ -137,7 +137,7 @@
                                           buffer,
                                           bufferSize,
                                           &encryptedSize);
-	if (cryptStatus == kCCSuccess) {
+    if (cryptStatus == kCCSuccess) {
         CocoaSecurityResult *result = [[CocoaSecurityResult alloc] initWithBytes:buffer length:encryptedSize];
         free(buffer);