diff --git a/terminal/terminal.c b/terminal/terminal.c
index 0c52fc6e..981ff6b3 100644
--- a/terminal/terminal.c
+++ b/terminal/terminal.c
@@ -3240,7 +3240,7 @@ static void do_osc(Terminal *term)
         }
         break;
       default:
-        /* APC, SOS and PM are recognised as control sequences but
+        /* DCS, APC, SOS and PM are recognised as control sequences but
          * ignored. PuTTY implements no support for any of them. */
         break;
     }
@@ -4128,10 +4128,11 @@ static void term_out(Terminal *term, bool called_from_term_data)
                     term->esc_args[0] = 0;
                     term->esc_nargs = 1;
                     break;
+                  case 'P':             /* DCS: Device Control String */
                   case 'X':             /* SOS: Start of String */
                   case '^':             /* PM: privacy message */
                   case '_':             /* APC: application program command */
-                    /* SOS, PM, and APC sequences are just a string, terminated
+                    /* DCS, SOS, PM, and APC sequences are just a string, terminated
                      * by ST or (I've observed in practice for APC) ^G. That
                      * is, they have the same termination convention as OSC. So
                      * we handle them by going straight into OSC_STRING state
@@ -4139,7 +4140,8 @@ static void term_out(Terminal *term, bool called_from_term_data)
                      * OSC. */
                     compatibility(OTHER);
                     term->termstate = SEEN_OSC;
-                    term->osc_type = (c == 'X' ? OSCLIKE_SOS :
+                    term->osc_type = (c == 'P' ? OSCLIKE_DCS :
+                                      c == 'X' ? OSCLIKE_SOS :
                                       c == '^' ? OSCLIKE_PM : OSCLIKE_APC);
                     term->osc_strlen = 0;
                     term->esc_args[0] = 0;
diff --git a/terminal/terminal.h b/terminal/terminal.h
index 0e7ab771..02967274 100644
--- a/terminal/terminal.h
+++ b/terminal/terminal.h
@@ -77,8 +77,9 @@ typedef enum {
     OSCLIKE_OSC,
     OSCLIKE_OSC_W,
     OSCLIKE_APC,
-    OSCLIKE_SOS,
+    OSCLIKE_DCS,
     OSCLIKE_PM,
+    OSCLIKE_SOS,
 } OscType;
 
 struct terminal_tag {