diff --git a/key-string.c b/key-string.c
index 37b4928f..5c01d062 100644
--- a/key-string.c
+++ b/key-string.c
@@ -170,6 +170,25 @@ key_string_lookup_string(const char *string)
 		return (KEYC_NONE);
 	}
 
+	if ((string[0] == 'S' || string[0] == 's') && string[1] == '-') {
+		ptr = string + 2;
+		if (ptr[0] == '\0')
+			return (KEYC_NONE);
+		key = key_string_lookup_string(ptr);
+		if (key != KEYC_NONE) {
+			if (key >= KEYC_BASE)
+				return (key | KEYC_SHIFT);
+		} else {
+			if (ptr[1] == '\0')
+				return (KEYC_NONE);
+			key = (u_char) ptr[0];
+		}
+
+		if (key >= 32 && key <= 127)
+			return (key | KEYC_SHIFT);
+		return (KEYC_NONE);
+	}
+
 	return (key_string_search_table(string));
 }