diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index e5484aad42..9e0a3d030e 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -6,6 +6,7 @@
 - Fix: [#8015] RCT2 files are not found when put into the OpenRCT2 folder.
 - Fix: [#13021] Mowed grass and weeds don't show up in extra zoom levels.
 - Fix: [#13029] Not all Junior Roller Coaster pieces are shown when "Show all track pieces" cheat is enabled.
+- Fix: [#13044] Rides in RCT1 saves all have "0 customers per hour".
 - Improved: [#13023] Made add_news_item console command last argument, assoc, optional.
 
 0.3.1 (2020-09-27)
diff --git a/src/openrct2/rct1/RCT1.h b/src/openrct2/rct1/RCT1.h
index f4e4888c23..92f32a317a 100644
--- a/src/openrct2/rct1/RCT1.h
+++ b/src/openrct2/rct1/RCT1.h
@@ -125,22 +125,14 @@ struct rct1_ride
     uint8_t unk_CC[2];              // 0x0CC
     uint8_t num_sheltered_sections; // 0x0CE
     // see cur_test_track_location
-    uint8_t cur_test_track_z;                 // 0x0CF
-    int16_t unk_D0;                           // 0x0D0
-    int16_t unk_D2;                           // 0x0D2
-    int16_t customers_per_hour;               // 0x0D4
-    int16_t unk_D6;                           // 0x0D6
-    int16_t unk_D8;                           // 0x0D8
-    int16_t unk_DA;                           // 0x0DA
-    int16_t unk_DC;                           // 0x0DC
-    int16_t unk_DE;                           // 0x0DE
-    uint16_t age;                             // 0x0E0
-    int16_t running_cost;                     // 0x0E2
-    int16_t unk_E4;                           // 0x0E4
-    int16_t unk_E6;                           // 0x0E6
-    money16 price;                            // 0x0E8
-    RCT12xy8 chairlift_bullwheel_location[2]; // 0x0EA
-    uint8_t chairlift_bullwheel_z[2];         // 0x0EE
+    uint8_t cur_test_track_z; // 0x0CF
+    int16_t unk_D0;           // 0x0D0
+    int16_t unk_D2;           // 0x0D2
+    // Customer count in the last 10 * 960 game ticks (sliding window)
+    uint16_t num_customers[CUSTOMER_HISTORY_SIZE]; // 0xD4
+    money16 price;                                 // 0x0E8
+    RCT12xy8 chairlift_bullwheel_location[2];      // 0x0EA
+    uint8_t chairlift_bullwheel_z[2];              // 0x0EE
     union
     {
         RatingTuple ratings;
diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index ed8ea3b23a..aa6fcd5820 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -950,6 +950,10 @@ private:
         dst->profit = src->profit;
         dst->total_profit = src->total_profit;
         dst->value = src->value;
+        for (size_t i = 0; i < std::size(src->num_customers); i++)
+        {
+            dst->num_customers[i] = src->num_customers[i];
+        }
 
         dst->satisfaction = src->satisfaction;
         dst->satisfaction_time_out = src->satisfaction_time_out;