diff --git a/src/saveload/signs_sl.cpp b/src/saveload/signs_sl.cpp
--- a/src/saveload/signs_sl.cpp
+++ b/src/saveload/signs_sl.cpp
@@ -18,7 +18,7 @@
 /** Description of a sign within the savegame. */
 static const SaveLoad _sign_desc[] = {
 	SLE_CONDVAR(Sign, name,  SLE_NAME,                   SL_MIN_VERSION, SLV_84),
-	SLE_CONDSTR(Sign, name,  SLE_STR | SLF_ALLOW_CONTROL, 0, SLV_84, SL_MAX_VERSION),
+	SLE_CONDSSTR(Sign, name, SLE_STR | SLF_ALLOW_CONTROL, SLV_84, SL_MAX_VERSION),
 	SLE_CONDVAR(Sign, x,     SLE_FILE_I16 | SLE_VAR_I32, SL_MIN_VERSION, SLV_5),
 	SLE_CONDVAR(Sign, y,     SLE_FILE_I16 | SLE_VAR_I32, SL_MIN_VERSION, SLV_5),
 	SLE_CONDVAR(Sign, x,     SLE_INT32,                  SLV_5, SL_MAX_VERSION),