diff --git a/fluid/alignment_panel.cxx b/fluid/alignment_panel.cxx
index 8b806ab5a..1d92d0233 100644
--- a/fluid/alignment_panel.cxx
+++ b/fluid/alignment_panel.cxx
@@ -3032,7 +3032,8 @@ Fl_Double_Window *shell_run_window=(Fl_Double_Window *)0;
 Fl_Terminal *shell_run_terminal=(Fl_Terminal *)0;
 
 static void cb_Clear(Fl_Button*, void*) {
-  shell_run_terminal->append("\033[2J\033[H");
+  // clear screen, clear scrollback, home cursor
+  shell_run_terminal->append("\033[2J\033[3J\033[H");
 }
 
 Fl_Return_Button *shell_run_button=(Fl_Return_Button *)0;
diff --git a/fluid/alignment_panel.fl b/fluid/alignment_panel.fl
index 1d9cd78d2..4f6a388e2 100644
--- a/fluid/alignment_panel.fl
+++ b/fluid/alignment_panel.fl
@@ -1584,7 +1584,8 @@ Function {make_shell_window()} {open
     } {
       Fl_Button {} {
         label Clear
-        callback {shell_run_terminal->append("\\033[2J\\033[H");}
+        callback {// clear screen, clear scrollback, home cursor
+shell_run_terminal->append("\\033[2J\\033[3J\\033[H");}
         xywh {10 395 94 25}
       }
       Fl_Box {} {