diff --git a/src/ui/dialog/aboutbox.cpp b/src/ui/dialog/aboutbox.cpp
index 94ce20e5f6b7b740044aa7ed294b5ea06a501ae5..5f76eaf898ac5f87ed014eb8e85fd7687298d450 100644
--- a/src/ui/dialog/aboutbox.cpp
+++ b/src/ui/dialog/aboutbox.cpp
@@ -20,6 +20,8 @@
 
 #include "aboutbox.h"
 
+#include <iostream>
+#include <string>
 #include <fstream>
 
 #include <glibmm/fileutils.h>
@@ -41,6 +43,21 @@
 
 #include "util/units.h"
 
+using namespace std;
+
+int bit_version()
+{
+switch (sizeof(void*)){
+        case 4: return 32;
+            break;
+        case 8: return 64;
+            break;
+    }
+}
+
+const int BIT_VERSION=bit_version();
+std::string BIT_VERSION_STRING = ", bit version = " + std::to_string(BIT_VERSION);
+
 
 
 namespace Inkscape {
@@ -82,7 +99,7 @@ AboutBox::AboutBox()
     // inserted into text widgets by the Gtk::AboutDialog parent class
     // clang-format off
     set_program_name  (  "Inkscape" );
-    set_version       (  Inkscape::version_string);
+    set_version       (  Inkscape::version_string + BIT_VERSION_STRING);
     set_logo_icon_name( "" ); // Disable icon
     set_website       (  "https://www.inkscape.org");
     set_website_label (_("Inkscape website"));