diff --git a/src/sl/economy_sl.cpp b/src/sl/economy_sl.cpp
index e5fd195b21..7509b4cce9 100644
--- a/src/sl/economy_sl.cpp
+++ b/src/sl/economy_sl.cpp
@@ -83,8 +83,8 @@ static void Ptrs_CAPY()
 
 static const ChunkHandler economy_chunk_handlers[] = {
 	MakeSaveUpstreamFeatureConditionalLoadUpstreamChunkHandler<'CAPY', XSLFI_TABLE_MISC_SL, 2>(Load_CAPY, Ptrs_CAPY, nullptr),
-	{ 'PRIC', nullptr,   Load_PRIC, nullptr,   nullptr, CH_RIFF  },
-	{ 'CAPR', nullptr,   Load_CAPR, nullptr,   nullptr, CH_RIFF  },
+	{ 'PRIC', nullptr,   Load_PRIC, nullptr,   nullptr, CH_READONLY  },
+	{ 'CAPR', nullptr,   Load_CAPR, nullptr,   nullptr, CH_READONLY  },
 	MakeSaveUpstreamFeatureConditionalLoadUpstreamChunkHandler<'ECMY', XSLFI_TABLE_MISC_SL, 2>(Load_ECMY, nullptr, nullptr),
 };
 
diff --git a/src/sl/plans_sl.cpp b/src/sl/plans_sl.cpp
index d1ad20c0c0..89e83dd07e 100644
--- a/src/sl/plans_sl.cpp
+++ b/src/sl/plans_sl.cpp
@@ -91,7 +91,7 @@ static void Load_PLANLINE()
 /** Chunk handlers related to plans. */
 static const ChunkHandler plan_chunk_handlers[] = {
 	{ 'PLAN', Save_PLAN, Load_PLAN,     nullptr, nullptr, CH_ARRAY },
-	{ 'PLLN', nullptr,   Load_PLANLINE, nullptr, nullptr, CH_ARRAY },
+	{ 'PLLN', nullptr,   Load_PLANLINE, nullptr, nullptr, CH_READONLY },
 };
 
 extern const ChunkHandlerTable _plan_chunk_handlers(plan_chunk_handlers);
diff --git a/src/sl/station_sl.cpp b/src/sl/station_sl.cpp
index 523228a21c..7acb434382 100644
--- a/src/sl/station_sl.cpp
+++ b/src/sl/station_sl.cpp
@@ -862,7 +862,7 @@ static const ChunkHandler station_chunk_handlers[] = {
 	{ 'STNS', nullptr,       Load_STNS,     Ptrs_STNS,     nullptr, CH_ARRAY },
 	{ 'STNN', Save_STNN,     Load_STNN,     Ptrs_STNN,     nullptr, CH_ARRAY },
 	{ 'ROAD', Save_ROADSTOP, Load_ROADSTOP, Ptrs_ROADSTOP, nullptr, CH_ARRAY },
-	{ 'DOCK', nullptr,       Load_DOCK,     nullptr,       nullptr, CH_ARRAY },
+	{ 'DOCK', nullptr,       Load_DOCK,     nullptr,       nullptr, CH_READONLY },
 };
 
 extern const ChunkHandlerTable _station_chunk_handlers(station_chunk_handlers);
diff --git a/src/sl/strings_sl.cpp b/src/sl/strings_sl.cpp
index 6ac548a178..87717f2ce8 100644
--- a/src/sl/strings_sl.cpp
+++ b/src/sl/strings_sl.cpp
@@ -132,7 +132,7 @@ static void Load_NAME()
 
 /** Chunk handlers related to strings. */
 static const ChunkHandler name_chunk_handlers[] = {
-	{ 'NAME', nullptr, Load_NAME, nullptr, nullptr, CH_ARRAY },
+	{ 'NAME', nullptr, Load_NAME, nullptr, nullptr, CH_READONLY },
 };
 
 extern const ChunkHandlerTable _name_chunk_handlers(name_chunk_handlers);
diff --git a/src/sl/waypoint_sl.cpp b/src/sl/waypoint_sl.cpp
index 2a2192cce9..275b52b22d 100644
--- a/src/sl/waypoint_sl.cpp
+++ b/src/sl/waypoint_sl.cpp
@@ -223,7 +223,7 @@ static void Ptrs_WAYP()
 }
 
 static const ChunkHandler waypoint_chunk_handlers[] = {
-	{ 'CHKP', nullptr, Load_WAYP, Ptrs_WAYP, nullptr, CH_ARRAY },
+	{ 'CHKP', nullptr, Load_WAYP, Ptrs_WAYP, nullptr, CH_READONLY },
 };
 
 extern const ChunkHandlerTable _waypoint_chunk_handlers(waypoint_chunk_handlers);