diff --git a/downloadclient.cc b/downloadclient.cc
index 208762e..36faf57 100644
--- a/downloadclient.cc
+++ b/downloadclient.cc
@@ -14,7 +14,7 @@ namespace pEp {
 
             try {
                 CryptoPP::ByteQueue queue;
-                CryptoPP::FileSource file("public.der", true);
+                CryptoPP::FileSource file(filename.c_str(), true);
                 file.TransferTo(queue);
                 queue.MessageEnd();
                 key.Load(queue);
diff --git a/downloadclient/downloadclient.xcodeproj/project.pbxproj b/downloadclient/downloadclient.xcodeproj/project.pbxproj
index 03e8a69..61a5c7a 100644
--- a/downloadclient/downloadclient.xcodeproj/project.pbxproj
+++ b/downloadclient/downloadclient.xcodeproj/project.pbxproj
@@ -194,11 +194,15 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				HEADER_SEARCH_PATHS = "";
+				LIBRARY_SEARCH_PATHS = "";
 				MACOSX_DEPLOYMENT_TARGET = 10.15;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
+				SYSTEM_HEADER_SEARCH_PATHS = "";
+				USER_HEADER_SEARCH_PATHS = "";
 			};
 			name = Debug;
 		};
@@ -246,10 +250,14 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				HEADER_SEARCH_PATHS = "";
+				LIBRARY_SEARCH_PATHS = "";
 				MACOSX_DEPLOYMENT_TARGET = 10.15;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = macosx;
+				SYSTEM_HEADER_SEARCH_PATHS = "";
+				USER_HEADER_SEARCH_PATHS = "";
 			};
 			name = Release;
 		};
@@ -260,8 +268,16 @@
 				EXECUTABLE_PREFIX = lib;
 				GCC_ENABLE_CPP_EXCEPTIONS = YES;
 				GCC_ENABLE_CPP_RTTI = YES;
-				"HEADER_SEARCH_PATHS[arch=*]" = /Users/vb/dev/boost_1_72_0;
-				"LIBRARY_SEARCH_PATHS[arch=*]" = /Users/vb/dev/boost_1_72_0/stage/lib;
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Users/vb/dev/boost_1_72_0,
+					/opt/local/include,
+				);
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					/Users/vb/dev/boost_1_72_0/stage/lib,
+					/opt/local/lib,
+				);
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 			};
@@ -274,8 +290,16 @@
 				EXECUTABLE_PREFIX = lib;
 				GCC_ENABLE_CPP_EXCEPTIONS = YES;
 				GCC_ENABLE_CPP_RTTI = YES;
-				"HEADER_SEARCH_PATHS[arch=*]" = /Users/vb/dev/boost_1_72_0;
-				"LIBRARY_SEARCH_PATHS[arch=*]" = /Users/vb/dev/boost_1_72_0/stage/lib;
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Users/vb/dev/boost_1_72_0,
+					/opt/local/include,
+				);
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					/Users/vb/dev/boost_1_72_0/stage/lib,
+					/opt/local/lib,
+				);
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 			};
diff --git a/downloadclient/downloadclient.xcodeproj/xcuserdata/vb.xcuserdatad/xcschemes/xcschememanagement.plist b/downloadclient/downloadclient.xcodeproj/xcuserdata/vb.xcuserdatad/xcschemes/xcschememanagement.plist
index d0e0619..0f2e7a0 100644
--- a/downloadclient/downloadclient.xcodeproj/xcuserdata/vb.xcuserdatad/xcschemes/xcschememanagement.plist
+++ b/downloadclient/downloadclient.xcodeproj/xcuserdata/vb.xcuserdatad/xcschemes/xcschememanagement.plist
@@ -7,7 +7,7 @@
 		<key>downloadclient.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>1</integer>
+			<integer>2</integer>
 		</dict>
 	</dict>
 </dict>