diff --git a/src/macos/AboutBox.h b/src/macos/AboutBox.h
index 31c17486b..1da55530e 100644
--- a/src/macos/AboutBox.h
+++ b/src/macos/AboutBox.h
@@ -25,6 +25,8 @@
 */
 @interface AboutBox : NSObject
 
+@property (nonatomic, strong) IBOutlet NSWindow *theWindow;
+
 + (AboutBox *)sharedInstance;
 - (IBAction)showPanel:(id)sender;
 - (IBAction)OK:(id)sender;
diff --git a/src/macos/AboutBox.m b/src/macos/AboutBox.m
index 388f76d49..15f8d5d2c 100644
--- a/src/macos/AboutBox.m
+++ b/src/macos/AboutBox.m
@@ -52,7 +52,6 @@ static AboutBox *sharedInstance = nil;
 
   if (!appNameField)
   {
-    NSWindow *theWindow;
     NSString *creditsPath;
     NSAttributedString *creditsString;
     NSString *appName;
@@ -61,13 +60,13 @@ static AboutBox *sharedInstance = nil;
     CFBundleRef localInfoBundle;
     NSDictionary *localInfoDict;
 
-    if (![NSBundle loadNibNamed:@"AboutBox" owner:self])
+    if (![[NSBundle mainBundle] loadNibNamed:@"AboutBox" owner:self topLevelObjects:nil])
     {
       NSLog( @"Failed to load AboutBox.nib" );
       NSBeep();
       return;
     }
-    theWindow = [appNameField window];
+    self.theWindow = [appNameField window];
 
     // Get the info dictionary (Info.plist)
     infoDictionary = [[NSBundle mainBundle] infoDictionary];
@@ -81,7 +80,7 @@ static AboutBox *sharedInstance = nil;
     [appNameField setStringValue:appName];
 
     // Set the about box window title
-    [theWindow setTitle:[NSString stringWithFormat:@"About %@", appName]];
+    [self.theWindow setTitle:[NSString stringWithFormat:@"About %@", appName]];
 
     // Setup the version field
     versionString = [infoDictionary objectForKey:@"CFBundleVersion"];
@@ -106,9 +105,9 @@ static AboutBox *sharedInstance = nil;
     maxScrollHeight = creditsBounds.size.height*2.75;
 
     // Setup the window
-    [theWindow setExcludedFromWindowsMenu:YES];
-    [theWindow setMenu:nil];
-    [theWindow center];
+    [self.theWindow setExcludedFromWindowsMenu:YES];
+    [self.theWindow setMenu:nil];
+    [self.theWindow center];
   }
 
   if (![[appNameField window] isVisible])
diff --git a/src/macos/stella.xcodeproj/project.pbxproj b/src/macos/stella.xcodeproj/project.pbxproj
index b404a5f53..13ea9ff3b 100644
--- a/src/macos/stella.xcodeproj/project.pbxproj
+++ b/src/macos/stella.xcodeproj/project.pbxproj
@@ -3629,7 +3629,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_INTERFACE_IVARS = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS = YES;
+				CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS = NO;
 				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = NO;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_SEMICOLON_BEFORE_METHOD_BODY = YES;
@@ -3706,7 +3706,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_INTERFACE_IVARS = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS = YES;
+				CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS = NO;
 				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = NO;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_SEMICOLON_BEFORE_METHOD_BODY = YES;