diff --git a/po/de.po b/po/de.po
index c87bd54..2657533 100644
--- a/po/de.po
+++ b/po/de.po
@@ -164,6 +164,8 @@ msgstr "Gitter ein-/ausblenden"
 #: ../src/ld-window-main.c:354
 msgid "Drag symbols from the library pane to add them to the diagram."
 msgstr ""
+"Ziehen Sie Symbole aus dem Bibliotheksfenster, um sie dem Diagramm "
+"hinzuzufügen."
 
 #: ../src/ld-window-main.c:591
 msgid "Unsaved Diagram"
@@ -190,7 +192,7 @@ msgstr "Fehler beim Öffnen der Datei"
 #: ../src/ld-window-main.c:707
 #, c-format
 msgid "Failed to open file `%s': Invalid contents."
-msgstr ""
+msgstr "Fehler beim Öffnen der Datei \"%s\": Ungültiger Inhalt."
 
 #: ../src/ld-window-main.c:738
 msgid "Logdiag Diagrams (*.ldd)"
diff --git a/po/pl.po b/po/pl.po
index 1253e9b..a1cdffa 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -163,7 +163,7 @@ msgstr "Przełączy pokazywanie siatki"
 
 #: ../src/ld-window-main.c:354
 msgid "Drag symbols from the library pane to add them to the diagram."
-msgstr ""
+msgstr "Przeciągnij symbole z panelu biblioteki, aby dodać je do diagramu."
 
 #: ../src/ld-window-main.c:591
 msgid "Unsaved Diagram"
@@ -189,7 +189,7 @@ msgstr "Pliku nie da się otworzyć"
 #: ../src/ld-window-main.c:707
 #, c-format
 msgid "Failed to open file `%s': Invalid contents."
-msgstr ""
+msgstr "Nie można otworzyć pliku \"%s\": Niepoprawna zawartość."
 
 #: ../src/ld-window-main.c:738
 msgid "Logdiag Diagrams (*.ldd)"
diff --git a/po/sk.po b/po/sk.po
index f4e4665..cb57ec9 100644
--- a/po/sk.po
+++ b/po/sk.po
@@ -163,7 +163,7 @@ msgstr "Prepne zobrazovanie mriežky"
 
 #: ../src/ld-window-main.c:354
 msgid "Drag symbols from the library pane to add them to the diagram."
-msgstr ""
+msgstr "Pre pridanie symbolov do diagramu ich pretiahnite z panela knižnice."
 
 #: ../src/ld-window-main.c:591
 msgid "Unsaved Diagram"
@@ -189,7 +189,7 @@ msgstr "Nepodarilo sa otvoriť súbor"
 #: ../src/ld-window-main.c:707
 #, c-format
 msgid "Failed to open file `%s': Invalid contents."
-msgstr ""
+msgstr "Nepodarilo sa otvoriť súbor \"%s\": Neplatný obsah."
 
 #: ../src/ld-window-main.c:738
 msgid "Logdiag Diagrams (*.ldd)"