diff --git a/cad/adapter.scad b/cad/adapter.scad
index e4dfb17..3d4fb2f 100644
--- a/cad/adapter.scad
+++ b/cad/adapter.scad
@@ -2,7 +2,7 @@
 // Housing box for UppSense first tries.
 //
 // Author:              Maximilian Stiefel
-// Last modification:   26.04.3017
+// Last modification:   28.04.2017
 /////////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////////
diff --git a/cad/housing.scad b/cad/housing.scad
index f0c475a..18b5f94 100644
--- a/cad/housing.scad
+++ b/cad/housing.scad
@@ -2,7 +2,7 @@
 // Housing box for UppSense first tries.
 //
 // Author:              Maximilian Stiefel
-// Last modification:   26.04.3017
+// Last modification:   26.04.2017
 /////////////////////////////////////////////////////////////////////////////////
 
 use <open_box.scad>
diff --git a/cad/lid.scad b/cad/lid.scad
index 4c70eeb..4dd18dd 100644
--- a/cad/lid.scad
+++ b/cad/lid.scad
@@ -2,7 +2,7 @@
 // Lid for the housing box for UppSense first tries.
 //
 // Author:              Maximilian Stiefel
-// Last modification:   27.04.3017
+// Last modification:   27.04.2017
 /////////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////////
diff --git a/cad/open_box.scad b/cad/open_box.scad
index e94db61..a377620 100644
--- a/cad/open_box.scad
+++ b/cad/open_box.scad
@@ -2,7 +2,7 @@
 // Module for a open box with rounded edges.
 //
 // Author: 		Maximilian Stiefel
-// Last modification: 	26.04.3017
+// Last modification: 	26.04.2017
 /////////////////////////////////////////////////////////////////////////////////
 
 module open_box(width, length, height, thickness)