diff --git a/modules/desktop/manifests/init.pp b/modules/desktop/manifests/init.pp
index 05555bdf99b07aa29224253424c16dec65e90d5d..ca57c09fb53f7dc1201da9081408e469dfacf1da 100644
--- a/modules/desktop/manifests/init.pp
+++ b/modules/desktop/manifests/init.pp
@@ -79,7 +79,7 @@ class desktop {
 
 	exec { 'fix-desktop-leafpad':
 		command => '/bin/sed -i "/^Name/ s/=.*/=Notes/;" /etc/skel/Desktop/leafpad.desktop',
-		onlyif => '/bin/grep -vq "^Name.*=Notes" /etc/skel/Desktop/leafpad.desktop',
+		unless => '/bin/grep -q "^Name=Notes" /etc/skel/Desktop/leafpad.desktop',
 	}
 
 	file { '/etc/skel/Desktop/galculator.desktop':
@@ -93,7 +93,7 @@ class desktop {
 
 	exec { 'fix-desktop-galculator':
 		command => '/bin/sed -i "/^Name/ s/=.*/=Calculator/;" /etc/skel/Desktop/galculator.desktop',
-		onlyif => '/bin/grep -vq "^Name.*=Calculator" /etc/skel/Desktop/galculator.desktop',
+		unless => '/bin/grep -q "^Name.*=Calculator" /etc/skel/Desktop/galculator.desktop',
 	}
 
 	file { '/etc/skel/Desktop/chromium-l10n.desktop':
@@ -115,7 +115,7 @@ class desktop {
 
 	exec { 'fix-desktop-florence':
 		command => '/bin/sed -i "/^Name/ s/=.*/=Keyboard/;" /etc/skel/Desktop/florence.desktop',
-		onlyif => '/bin/grep -vq "^Name.*=Keyboard" /etc/skel/Desktop/florence.desktop',
+		unless => '/bin/grep -q "^Name.*=Keyboard" /etc/skel/Desktop/florence.desktop',
 	}
 
 	file { '/etc/skel/Desktop/pcmanfm.desktop':
@@ -129,7 +129,7 @@ class desktop {
 
 	exec { 'fix-desktop-pcmanfm':
 		command => '/bin/sed -i "/^Name/ s/=.*/=Filemanager/;" /etc/skel/Desktop/pcmanfm.desktop',
-		onlyif => '/bin/grep -vq "^Name.*=Filemanager" /etc/skel/Desktop/pcmanfm.desktop',
+		unless => '/bin/grep -q "^Name.*=Filemanager" /etc/skel/Desktop/pcmanfm.desktop',
 	}
 
 	file { '/etc/skel/Desktop/iceweasel.desktop':
@@ -143,7 +143,7 @@ class desktop {
 
 	exec { 'fix-desktop-iceweasel':
 		command => '/bin/sed -i "/^Name/ s/=.*/=Webbrowser/;" /etc/skel/Desktop/iceweasel.desktop',
-		onlyif => '/bin/grep -vq "^Name.*=Webbrowser" /etc/skel/Desktop/iceweasel.desktop',
+		unless => '/bin/grep -q "^Name.*=Webbrowser" /etc/skel/Desktop/iceweasel.desktop',
 	}