diff --git a/lang/qet_de.qm b/lang/qet_de.qm
index cfa1727b8..03028bb79 100644
Binary files a/lang/qet_de.qm and b/lang/qet_de.qm differ
diff --git a/lang/qet_de.ts b/lang/qet_de.ts
index 0eb19a257..a813d0696 100644
--- a/lang/qet_de.ts
+++ b/lang/qet_de.ts
@@ -9101,7 +9101,7 @@ Möchten Sie sie ersetzen?</translation>
     <message>
         <location filename="../sources/qetinformation.cpp" line="281"/>
         <source>Bloc auxiliaire 2</source>
-        <translation>Zusatzinfo 2</translation>
+        <translation>Zusatzinfo Zusatzartikel 2</translation>
     </message>
     <message>
         <location filename="../sources/qetinformation.cpp" line="282"/>
@@ -9642,7 +9642,7 @@ Fehler: Stellen Sie sicher, dass die Datei %1 eine gültige dxf-Datei ist</trans
         <location filename="../sources/dxf/dxftoelmt.cpp" line="59"/>
         <location filename="../sources/qet_elementscaler/qet_elementscaler.cpp" line="101"/>
         <source>See details here:</source>
-        <translation>Fehlermeldung:</translation>
+        <translation>Details:</translation>
     </message>
     <message>
         <location filename="../sources/dxf/dxftoelmt.cpp" line="112"/>
diff --git a/sources/ElementsCollection/elementslocation.h b/sources/ElementsCollection/elementslocation.h
index ebe5863d6..92fd2ea87 100644
--- a/sources/ElementsCollection/elementslocation.h
+++ b/sources/ElementsCollection/elementslocation.h
@@ -37,7 +37,7 @@ class XmlElementCollection;
 	This class represents the location,
 	the location of an element or of a category,
 	even of a collection ... in a collection.
-	She encapsulates a virtual path.
+	It encapsulates a virtual path.
 	\~French
 	Cette classe represente la localisation, l'emplacement d'un element ou
 	d'une categorie, voire d'une collection... dans une collection.
diff --git a/sources/diagramcontext.cpp b/sources/diagramcontext.cpp
index 5d067c845..5a1f74744 100644
--- a/sources/diagramcontext.cpp
+++ b/sources/diagramcontext.cpp
@@ -25,7 +25,7 @@
 	@brief DiagramContext::add
 	Add all value of other to this.
 	If a key already exist, the value is replaced.
-	If a key doesn't exist, she will be added.
+	If a key doesn't exist, it will be added.
 	All other keys of this context, which are not present in other, stay unchanged.
 	@param other
 */
@@ -124,7 +124,7 @@ int DiagramContext::count()
 
 /**
 	@brief DiagramContext::keyMustShow
-	@return the value pairs with key, if key no found, return false
+	@return the value pairs with key, if key not found, return false
 */
 bool DiagramContext::keyMustShow(const QString &key) const
 {
@@ -135,7 +135,7 @@ bool DiagramContext::keyMustShow(const QString &key) const
 
 bool DiagramContext::operator==(const DiagramContext &dc) const
 {
-	return(m_content     == dc.m_content &&
+	return(m_content == dc.m_content &&
 		   m_content_show == dc.m_content_show);
 }
 
diff --git a/sources/project/projectpropertieshandler.h b/sources/project/projectpropertieshandler.h
index 488d6cba8..10d310f07 100644
--- a/sources/project/projectpropertieshandler.h
+++ b/sources/project/projectpropertieshandler.h
@@ -26,15 +26,15 @@ class QETProject;
 
 /**
  * @brief The ProjectPropertiesHandler class
- * A central class who handle, keep and provide all utilities
+ * A central class that handles, keeps and provides all utilities
  * to easily manage all kind of properties used in a project.
  *
  * This is a new class since QElectroTech 0.9
- * by consequent she is small and you can found a lot of properties (made before qet 0.9)
+ * by consequence it is small and you can find a lot of properties (made before qet 0.9)
  * everywhere in the code.
  * All new properties should be managed by this class
- * (of course if it make sense to be managed by this class).
- * Older properties who are not managed by this class but should be,
+ * (of course if it makes sense to be managed by this class).
+ * Older properties which are not managed by this class but should be,
  * will be managed in future.
  */
 class ProjectPropertiesHandler
diff --git a/sources/qetdiagrameditor.cpp b/sources/qetdiagrameditor.cpp
index 9f753de12..a2d937f96 100644
--- a/sources/qetdiagrameditor.cpp
+++ b/sources/qetdiagrameditor.cpp
@@ -2083,10 +2083,10 @@ void QETDiagramEditor::projectWasClosed(ProjectView *project_view)
 		undo_group.removeStack(project -> undoStack());
 		QETApp::unregisterProject(project);
 	}
-	//When project is closed, a lot of signal are emitted, notably if there is an item selected in a diagram.
-	//In some special case, since signal/slot connection can be direct or queued, some signal are handled after QObject is deleted, and crash qet
-	//notably in the function Diagram::elements when she call items() (I don't know exactly why).
-	//set nullptr to "m_selection_properties_editor->setDiagram()" fix this crash
+	//When project is closed, a lot of signals are emitted, notably if there is an item selected in a diagram.
+	//In some special case, since signal/slot connection can be direct or queued, some signals are handled after QObject is deleted, and crash qet
+	//notably in the function Diagram::elements when it calls items() (I don't know exactly why).
+	//set nullptr to "m_selection_properties_editor->setDiagram()" fixes this crash
 	m_selection_properties_editor->setDiagram(nullptr);
 	project_view -> deleteLater();
 	project -> deleteLater();