diff --git a/src/core/ansiesc.c b/src/core/ansiesc.c
index 68e7061b3..ca9a73ce0 100644
--- a/src/core/ansiesc.c
+++ b/src/core/ansiesc.c
@@ -99,7 +99,8 @@ int ansiesc_process ( struct ansiesc_context *ctx, int c ) {
 				DBG ( "Too many parameters in ANSI escape "
 				      "sequence\n" );
 			}
-		} else if ( ( c >= 0x20 ) && ( c <= 0x2f ) ) {
+		} else if ( ( ( c >= 0x20 ) && ( c <= 0x2f ) ) ||
+			    ( c == '?' ) ) {
 			/* Intermediate Byte */
 			ctx->function <<= 8;
 			ctx->function |= c;
diff --git a/src/include/ipxe/ansiesc.h b/src/include/ipxe/ansiesc.h
index e84545769..c1c74481d 100644
--- a/src/include/ipxe/ansiesc.h
+++ b/src/include/ipxe/ansiesc.h
@@ -124,6 +124,12 @@ struct ansiesc_context {
  */
 #define ANSIESC_LOG_PRIORITY 'p'
 
+/** Show cursor */
+#define ANSIESC_DECTCEM_SET ( ( '?' << 8 ) | 'h' )
+
+/** Hide cursor */
+#define ANSIESC_DECTCEM_RESET ( ( '?' << 8 ) | 'l' )
+
 /** @} */
 
 extern int ansiesc_process ( struct ansiesc_context *ctx, int c );