diff --git a/generators/comicbook/document.cpp b/generators/comicbook/document.cpp
--- a/generators/comicbook/document.cpp
+++ b/generators/comicbook/document.cpp
@@ -18,6 +18,7 @@
 #include <QMimeDatabase>
 #include <kzip.h>
 #include <ktar.h>
+#include <k7zip.h>
 
 #include <memory>
 
@@ -75,6 +76,15 @@
                 mime.inherits( QStringLiteral("application/x-tar") ) || mime.inherits( QStringLiteral("application/x-bzip") ) ) {
         mArchive = new KTar( fileName );
 
+        if ( !processArchive() ) {
+            return false;
+        }
+    /**
+     * We have a 7z archive
+     */
+    } else if ( mime.inherits( QStringLiteral("application/x-cb7") ) || mime.inherits( QStringLiteral("application/x-7z-compressed") ) ) {
+        mArchive = new K7Zip( fileName );
+
         if ( !processArchive() ) {
             return false;
         }
diff --git a/generators/comicbook/libokularGenerator_comicbook.json b/generators/comicbook/libokularGenerator_comicbook.json
--- a/generators/comicbook/libokularGenerator_comicbook.json
+++ b/generators/comicbook/libokularGenerator_comicbook.json
@@ -116,6 +116,7 @@
             "application/x-cbz",
             "application/x-cbr",
             "application/x-cbt",
+            "application/x-cb7",
             "inode/directory"
         ],
         "Name": "ComicBook Backend",
diff --git a/generators/comicbook/okularApplication_comicbook.desktop b/generators/comicbook/okularApplication_comicbook.desktop
--- a/generators/comicbook/okularApplication_comicbook.desktop
+++ b/generators/comicbook/okularApplication_comicbook.desktop
@@ -1,5 +1,5 @@
 [Desktop Entry]
-MimeType=application/x-cbz;application/x-cbr;application/x-cbt;
+MimeType=application/x-cbz;application/x-cbr;application/x-cbt;application/x-cb7;
 Terminal=false
 Name=Okular
 Name[ar]=اوكلار
@@ -165,7 +165,7 @@
 InitialPreference=7
 Categories=Qt;KDE;Graphics;Viewer;
 NoDisplay=true
-X-KDE-Keywords=cbr, cbz, cbt, Comic Book
+X-KDE-Keywords=cbr, cbz, cbt, cb7, Comic Book
 X-KDE-Keywords[ar]=cbr, cbz, cbt, Comic Book
 X-KDE-Keywords[bg]=cbr, cbz, cbt, Comic Book
 X-KDE-Keywords[bs]=cbr, cbz, cbt, Comic Book,stripovi
diff --git a/generators/comicbook/okularComicbook.desktop b/generators/comicbook/okularComicbook.desktop
--- a/generators/comicbook/okularComicbook.desktop
+++ b/generators/comicbook/okularComicbook.desktop
@@ -62,4 +62,4 @@
 X-KDE-ServiceTypes=KParts/ReadOnlyPart
 X-KDE-Library=okularpart
 Type=Service
-MimeType=application/x-cbz;application/x-cbr;application/x-cbt;
+MimeType=application/x-cbz;application/x-cbr;application/x-cbt;application/x-cb7;
diff --git a/generators/comicbook/org.kde.mobile.okular_comicbook.desktop b/generators/comicbook/org.kde.mobile.okular_comicbook.desktop
--- a/generators/comicbook/org.kde.mobile.okular_comicbook.desktop
+++ b/generators/comicbook/org.kde.mobile.okular_comicbook.desktop
@@ -1,5 +1,5 @@
 [Desktop Entry]
-MimeType=application/x-cbz;application/x-cbr;application/x-cbt;
+MimeType=application/x-cbz;application/x-cbr;application/x-cbt;application/x-cb7;
 Name=Reader
 Name[ar]=التصيير
 Name[bg]=Четец
@@ -156,7 +156,7 @@
 Categories=Qt;KDE;Graphics;Office;Viewer;
 InitialPreference=2
 NoDisplay=true
-X-KDE-Keywords=cbr, cbz, cbt, Comic Book
+X-KDE-Keywords=cbr, cbz, cbt, cb7, Comic Book
 X-KDE-Keywords[ar]=cbr, cbz, cbt, Comic Book
 X-KDE-Keywords[bg]=cbr, cbz, cbt, Comic Book
 X-KDE-Keywords[bs]=cbr, cbz, cbt, Comic Book,stripovi
diff --git a/generators/comicbook/org.kde.okular-comicbook.metainfo.xml b/generators/comicbook/org.kde.okular-comicbook.metainfo.xml
--- a/generators/comicbook/org.kde.okular-comicbook.metainfo.xml
+++ b/generators/comicbook/org.kde.okular-comicbook.metainfo.xml
@@ -78,6 +78,7 @@
     <mimetype>application/x-cbr</mimetype>
     <mimetype>application/x-cbz</mimetype>
     <mimetype>application/x-cbt</mimetype>
+    <mimetype>application/x-cb7</mimetype>
   </mimetypes>
   <url type="homepage">https://okular.kde.org</url>
 </component>