diff --git a/Graph Views/XRGCPUView.m b/Graph Views/XRGCPUView.m
index b2e9ebf..e9eb5b4 100644
--- a/Graph Views/XRGCPUView.m	
+++ b/Graph Views/XRGCPUView.m	
@@ -413,7 +413,7 @@ - (void)openCPUPreferences:(NSEvent *)theEvent {
 - (void)openActivityMonitor:(NSEvent *)theEvent {
     [NSTask 
       launchedTaskWithLaunchPath:@"/usr/bin/open"
-      arguments:@[@"/Applications/Utilities/Activity Monitor.app"]
+      arguments:@[@"-a", @"Activity Monitor.app"]
     ];
 }
 
diff --git a/Graph Views/XRGDiskView.m b/Graph Views/XRGDiskView.m
index aa572f2..004927c 100644
--- a/Graph Views/XRGDiskView.m	
+++ b/Graph Views/XRGDiskView.m	
@@ -438,7 +438,7 @@ - (NSMenu *)menuForEvent:(NSEvent *)theEvent {
 - (void)openDiskUtility:(NSEvent *)theEvent {
     [NSTask 
       launchedTaskWithLaunchPath:@"/usr/bin/open"
-      arguments:@[@"/Applications/Utilities/Disk Utility.app"]
+      arguments:@[@"-a", @"Disk Utility.app"]
     ];
 }
 
diff --git a/Graph Views/XRGNetView.m b/Graph Views/XRGNetView.m
index c058655..bedd173 100644
--- a/Graph Views/XRGNetView.m	
+++ b/Graph Views/XRGNetView.m	
@@ -371,7 +371,7 @@ - (void)openNetworkSystemPreferences:(NSEvent *)theEvent {
 - (void)openNetworkUtility:(NSEvent *)theEvent {
     [NSTask 
       launchedTaskWithLaunchPath:@"/usr/bin/open"
-      arguments:@[@"/Applications/Utilities/Network Utility.app"]
+      arguments:@[@"-a", @"Network Utility.app"]
     ];
 }