diff --git a/src/apps/activitymonitor/ActivityView.cpp b/src/apps/activitymonitor/ActivityView.cpp
index eb78190ed3..fc4f32efa0 100644
--- a/src/apps/activitymonitor/ActivityView.cpp
+++ b/src/apps/activitymonitor/ActivityView.cpp
@@ -1113,8 +1113,14 @@ ActivityView::MessageReceived(BMessage* message)
 	switch (message->what) {
 		case B_ABOUT_REQUESTED:
 			if (fAboutWindow == NULL) {
+				const char* authors[] = {
+					"Axel Dörfler",
+					NULL
+				};
+
 				fAboutWindow = new BAboutWindow(kAppName, kSignature);
 				fAboutWindow->AddCopyright(2008, "Haiku, Inc.");
+				fAboutWindow->AddAuthors(authors);
 				fAboutWindow->Show();
 			} else if (fAboutWindow->IsHidden())
 				fAboutWindow->Show();
diff --git a/src/apps/deskcalc/CalcView.cpp b/src/apps/deskcalc/CalcView.cpp
index 9c01f30e16..7a158ca757 100644
--- a/src/apps/deskcalc/CalcView.cpp
+++ b/src/apps/deskcalc/CalcView.cpp
@@ -277,9 +277,18 @@ CalcView::MessageReceived(BMessage* message)
 						NULL
 					};
 
+					const char* authors[] = {
+						"Stephan Aßmus",
+						"John Scipione",
+						"Timothy Wayper",
+						"Ingo Weinhold",
+						NULL
+					};
+
 					fAboutWindow = new BAboutWindow(kAppName, kSignature);
 					fAboutWindow->AddCopyright(2006, "Haiku, Inc.",
 						extraCopyrights);
+					fAboutWindow->AddAuthors(authors);
 					fAboutWindow->Show();
 				} else if (fAboutWindow->IsHidden())
 					fAboutWindow->Show();