diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp
index 57396b0a98..15e61ae5c8 100644
--- a/src/saveload/afterload.cpp
+++ b/src/saveload/afterload.cpp
@@ -2819,7 +2819,7 @@ bool AfterLoadGame()
 	}
 
 	/* Set some breakdown-related variables to the correct values. */
-	if (SlXvIsFeatureMissing(XLSFI_IMPROVED_BREAKDOWNS)) {
+	if (SlXvIsFeatureMissing(XSLFI_IMPROVED_BREAKDOWNS)) {
 		Vehicle *v;
 		FOR_ALL_VEHICLES(v) {
 			switch(v->type) {
diff --git a/src/saveload/extended_ver_sl.cpp b/src/saveload/extended_ver_sl.cpp
index 84d799836e..2d7c08c0a7 100644
--- a/src/saveload/extended_ver_sl.cpp
+++ b/src/saveload/extended_ver_sl.cpp
@@ -45,7 +45,7 @@ std::vector<uint32> _sl_xv_discardable_chunk_ids;           ///< list of chunks
 static const uint32 _sl_xv_slxi_chunk_version = 0;          ///< current version os SLXI chunk
 
 const SlxiSubChunkInfo _sl_xv_sub_chunk_infos[] = {
-	{ XLSFI_IMPROVED_BREAKDOWNS, XSCF_NULL, 1, 1, "improved_breakdowns", NULL, NULL, NULL },
+	{ XSLFI_IMPROVED_BREAKDOWNS, XSCF_NULL, 1, 1, "improved_breakdowns", NULL, NULL, NULL },
 	{ XSLFI_NULL, XSCF_NULL, 0, 0, NULL, NULL, NULL, NULL },// This is the end marker
 };
 
diff --git a/src/saveload/extended_ver_sl.h b/src/saveload/extended_ver_sl.h
index af2308ed6f..bb726e4d26 100644
--- a/src/saveload/extended_ver_sl.h
+++ b/src/saveload/extended_ver_sl.h
@@ -21,7 +21,7 @@
  */
 enum SlXvFeatureIndex {
 	XSLFI_NULL                          = 0,      ///< Unused value, to indicate that no extended feature test is in use
-	XLSFI_IMPROVED_BREAKDOWNS,                    ///< Improved breakdowns patch
+	XSLFI_IMPROVED_BREAKDOWNS,                    ///< Improved breakdowns patch
 
 	XSLFI_SIZE,                                   ///< Total count of features, including null feature
 };
diff --git a/src/saveload/vehicle_sl.cpp b/src/saveload/vehicle_sl.cpp
index cc0dd2b8ab..a771598f02 100644
--- a/src/saveload/vehicle_sl.cpp
+++ b/src/saveload/vehicle_sl.cpp
@@ -671,8 +671,8 @@ const SaveLoad *GetVehicleDescription(VehicleType vt)
 		     SLE_VAR(Vehicle, breakdown_delay,       SLE_UINT8),
 		     SLE_VAR(Vehicle, breakdowns_since_last_service, SLE_UINT8),
 		     SLE_VAR(Vehicle, breakdown_chance,      SLE_UINT8),
-		SLE_CONDVAR_X(Vehicle, breakdown_type,       SLE_UINT8,                    0, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XLSFI_IMPROVED_BREAKDOWNS)),
-		SLE_CONDVAR_X(Vehicle, breakdown_severity,   SLE_UINT8,                    0, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XLSFI_IMPROVED_BREAKDOWNS)),
+		SLE_CONDVAR_X(Vehicle, breakdown_type,       SLE_UINT8,                    0, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_IMPROVED_BREAKDOWNS)),
+		SLE_CONDVAR_X(Vehicle, breakdown_severity,   SLE_UINT8,                    0, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_IMPROVED_BREAKDOWNS)),
 		 SLE_CONDVAR(Vehicle, build_year,            SLE_FILE_U8 | SLE_VAR_I32,    0,  30),
 		 SLE_CONDVAR(Vehicle, build_year,            SLE_INT32,                   31, SL_MAX_VERSION),