diff --git a/TwitterDemo.xcodeproj/project.pbxproj b/TwitterDemo.xcodeproj/project.pbxproj
index 4eb490f..7772d5d 100644
--- a/TwitterDemo.xcodeproj/project.pbxproj
+++ b/TwitterDemo.xcodeproj/project.pbxproj
@@ -344,7 +344,7 @@
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				CLANG_ENABLE_OBJC_ARC = YES;
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				COPY_PHASE_STRIP = NO;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
@@ -359,6 +359,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
+				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "";
 				SDKROOT = iphoneos;
 			};
 			name = Debug;
@@ -369,7 +370,8 @@
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				CLANG_ENABLE_OBJC_ARC = YES;
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				CODE_SIGN_IDENTITY = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Distribution";
 				COPY_PHASE_STRIP = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
@@ -378,6 +380,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
 				OTHER_CFLAGS = "-DNS_BLOCK_ASSERTIONS=1";
+				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "";
 				SDKROOT = iphoneos;
 				VALIDATE_PRODUCT = YES;
 			};