diff --git a/src/saveload/gamelog_sl.cpp b/src/saveload/gamelog_sl.cpp
index 3b0d28dc92..23ded67cab 100644
--- a/src/saveload/gamelog_sl.cpp
+++ b/src/saveload/gamelog_sl.cpp
@@ -44,14 +44,14 @@ public:
 	void LoadCheck(LoggedChange *lc) const override { this->Load(lc); }
 };
 
-static char old_revision_text[GAMELOG_REVISION_LENGTH];
-static std::string revision_test;
+static char _old_revision_text[GAMELOG_REVISION_LENGTH];
+static std::string _revision_text;
 
 class SlGamelogRevision : public DefaultSaveLoadHandler<SlGamelogRevision, LoggedChange> {
 public:
 	inline static const SaveLoad description[] = {
-		SLEG_CONDARR("revision.text", old_revision_text, SLE_UINT8, GAMELOG_REVISION_LENGTH, SL_MIN_VERSION,     SLV_STRING_GAMELOG),
-		SLEG_CONDSSTR("revision.text",    revision_test, SLE_STR,                            SLV_STRING_GAMELOG, SL_MAX_VERSION),
+		SLEG_CONDARR("revision.text", _old_revision_text, SLE_UINT8, GAMELOG_REVISION_LENGTH, SL_MIN_VERSION,     SLV_STRING_GAMELOG),
+		SLEG_CONDSSTR("revision.text",    _revision_text, SLE_STR,                            SLV_STRING_GAMELOG, SL_MAX_VERSION),
 		SLE_VAR(LoggedChange, revision.newgrf,   SLE_UINT32),
 		SLE_VAR(LoggedChange, revision.slver,    SLE_UINT16),
 		SLE_VAR(LoggedChange, revision.modified, SLE_UINT8),
@@ -61,6 +61,7 @@ public:
 	void Save(LoggedChange *lc) const override
 	{
 		if (lc->ct != GLCT_REVISION) return;
+		_revision_text = lc->revision.text != nullptr ? lc->revision.text : "";
 		SlObject(lc, this->GetDescription());
 	}
 
@@ -69,9 +70,9 @@ public:
 		if (lc->ct != GLCT_REVISION) return;
 		SlObject(lc, this->GetLoadDescription());
 		if (IsSavegameVersionBefore(SLV_STRING_GAMELOG)) {
-			lc->revision.text = stredup(old_revision_text, lastof(old_revision_text));
+			lc->revision.text = stredup(_old_revision_text, lastof(_old_revision_text));
 		} else {
-			lc->revision.text = stredup(revision_test.c_str());
+			lc->revision.text = stredup(_revision_text.c_str());
 		}
 	}
 
diff --git a/src/sl/extended_ver_sl.cpp b/src/sl/extended_ver_sl.cpp
index 8e5dfe8518..ce75667476 100644
--- a/src/sl/extended_ver_sl.cpp
+++ b/src/sl/extended_ver_sl.cpp
@@ -113,7 +113,7 @@ const SlxiSubChunkInfo _sl_xv_sub_chunk_infos[] = {
 	{ XSLFI_TEMPLATE_REPLACEMENT,             XSCF_NULL,                9,   9, "template_replacement",             nullptr, nullptr, "TRPL,TMPL"      },
 	{ XSLFI_MORE_RAIL_TYPES,                  XSCF_NULL,                0,   1, "more_rail_types",                  nullptr, nullptr, nullptr          },
 	{ XSLFI_CARGO_TYPE_ORDERS,                XSCF_NULL,                3,   3, "cargo_type_orders",                nullptr, nullptr, "ORDX,VEOX"      },
-	{ XSLFI_EXTENDED_GAMELOG,                 XSCF_NULL,                1,   1, "extended_gamelog",                 nullptr, nullptr, nullptr          },
+	{ XSLFI_EXTENDED_GAMELOG,                 XSCF_NULL,                2,   2, "extended_gamelog",                 nullptr, nullptr, nullptr          },
 	{ XSLFI_STATION_CATCHMENT_INC,            XSCF_NULL,                1,   1, "station_catchment_inc",            nullptr, nullptr, nullptr          },
 	{ XSLFI_CUSTOM_BRIDGE_HEADS,              XSCF_NULL,                4,   4, "custom_bridge_heads",              nullptr, nullptr, nullptr          },
 	{ XSLFI_CHUNNEL,                          XSCF_NULL,                2,   2, "chunnel",                          nullptr, nullptr, "TUNN"           },
diff --git a/src/sl/gamelog_sl.cpp b/src/sl/gamelog_sl.cpp
index 8d4f313409..3de083efea 100644
--- a/src/sl/gamelog_sl.cpp
+++ b/src/sl/gamelog_sl.cpp
@@ -129,24 +129,6 @@ static void Load_GLOG_common(std::vector<LoggedAction> &gamelog_actions)
 	}
 }
 
-static void Save_GLOG()
-{
-	SlAutolength([](void *) {
-		for (LoggedAction &la : _gamelog_actions) {
-			SlWriteByte(la.at);
-			SlObject(&la, _glog_action_desc);
-
-			for (LoggedChange &lc : la.changes) {
-				SlWriteByte(lc.ct);
-				assert((uint)lc.ct < GLCT_END);
-				SlObject(&lc, _glog_desc[lc.ct]);
-			}
-			SlWriteByte(GLCT_NONE);
-		}
-		SlWriteByte(GLAT_NONE);
-	}, nullptr);
-}
-
 static void Load_GLOG()
 {
 	Load_GLOG_common(_gamelog_actions);
@@ -158,7 +140,7 @@ static void Check_GLOG()
 }
 
 static const ChunkHandler gamelog_chunk_handlers[] = {
-	{ 'GLOG', Save_GLOG, Load_GLOG, nullptr, Check_GLOG, CH_RIFF }
+	MakeSaveUpstreamFeatureConditionalLoadUpstreamChunkHandler<'GLOG', XSLFI_EXTENDED_GAMELOG, 2>(Load_GLOG, nullptr, Check_GLOG),
 };
 
 extern const ChunkHandlerTable _gamelog_chunk_handlers(gamelog_chunk_handlers);