diff --git a/src/apps/terminal/TermParse.cpp b/src/apps/terminal/TermParse.cpp
index ce762b6a42..2ac2a7f4f6 100644
--- a/src/apps/terminal/TermParse.cpp
+++ b/src/apps/terminal/TermParse.cpp
@@ -951,6 +951,13 @@ TermParse::EscParse()
 					parsestate = groundtable;
 					break;
 
+				case CASE_SD:	// scroll screen down
+					if ((row = param[0]) < 1)
+						row = 1;
+					fBuffer->ScrollBy(-row);
+					parsestate = groundtable;
+					break;
+
 				default:
 					break;
 		}
diff --git a/src/apps/terminal/VTPrsTbl.c b/src/apps/terminal/VTPrsTbl.c
index a22999666b..9b8c679926 100644
--- a/src/apps/terminal/VTPrsTbl.c
+++ b/src/apps/terminal/VTPrsTbl.c
@@ -1117,7 +1117,7 @@ CASE_GROUND_STATE,
 CASE_GROUND_STATE,
 CASE_SU,
 /*	T		U		V		W	*/
-CASE_GROUND_STATE,
+CASE_SD,
 CASE_GROUND_STATE,
 CASE_GROUND_STATE,
 CASE_GROUND_STATE,
diff --git a/src/apps/terminal/VTparse.h b/src/apps/terminal/VTparse.h
index 2621892bf2..536ea3b3a3 100644
--- a/src/apps/terminal/VTparse.h
+++ b/src/apps/terminal/VTparse.h
@@ -121,3 +121,4 @@
 #define CASE_HPA 88
 
 #define CASE_SU 89	/* scroll screen up */
+#define CASE_SD 90	/* scroll screen down */