diff --git a/src/osd/modules/debugger/osx/debugconsole.mm b/src/osd/modules/debugger/osx/debugconsole.mm
index c151801b4fe..f5023a2b76d 100644
--- a/src/osd/modules/debugger/osx/debugconsole.mm
+++ b/src/osd/modules/debugger/osx/debugconsole.mm
@@ -204,7 +204,7 @@
 	[dasmView selectSubviewForDevice:device];
 	[window setTitle:[NSString stringWithFormat:@"Debug: %s - %s '%s'",
 												device->machine().system().name,
-												device->name().c_str(),
+												device->name(),
 												device->tag().c_str()]];
 }
 
diff --git a/src/osd/modules/debugger/osx/deviceinfoviewer.mm b/src/osd/modules/debugger/osx/deviceinfoviewer.mm
index 222a72028b0..15c166e4d5d 100644
--- a/src/osd/modules/debugger/osx/deviceinfoviewer.mm
+++ b/src/osd/modules/debugger/osx/deviceinfoviewer.mm
@@ -157,11 +157,11 @@
 			toView:contentView];
 	[self addLabel:@"Name:"
 		 withWidth:100
-		  andField:[NSString stringWithUTF8String:device->name().c_str()]
+		  andField:[NSString stringWithUTF8String:device->name()]
 			toView:contentView];
 	[self addLabel:@"Shortname:"
 		 withWidth:100
-		  andField:[NSString stringWithUTF8String:device->shortname().c_str()]
+		  andField:[NSString stringWithUTF8String:device->shortname()]
 			toView:contentView];
 
 	// add interfaces if present
diff --git a/src/osd/modules/debugger/osx/devicesviewer.mm b/src/osd/modules/debugger/osx/devicesviewer.mm
index 31c53b0f3fc..ddf08602bc6 100644
--- a/src/osd/modules/debugger/osx/devicesviewer.mm
+++ b/src/osd/modules/debugger/osx/devicesviewer.mm
@@ -75,12 +75,12 @@
 
 - (NSString *)tag {
 	return (device == &machine->root_device()) ? @"<root>"
-											   : [NSString stringWithUTF8String:device->basetag().c_str()];
+											   : [NSString stringWithUTF8String:device->basetag()];
 }
 
 
 - (NSString *)name {
-	return [NSString stringWithUTF8String:device->name().c_str()];
+	return [NSString stringWithUTF8String:device->name()];
 }