diff --git a/src/openrct2-ui/windows/Research.cpp b/src/openrct2-ui/windows/Research.cpp
index 9719a31a6a..0f7fb55671 100644
--- a/src/openrct2-ui/windows/Research.cpp
+++ b/src/openrct2-ui/windows/Research.cpp
@@ -357,7 +357,7 @@ void window_research_development_page_paint(rct_window *w, rct_drawpixelinfo *dp
         stringId = STR_RESEARCH_UNKNOWN;
         if (gResearchProgressStage != RESEARCH_STAGE_INITIAL_RESEARCH)
         {
-            stringId = ResearchCategoryNames[gResearchNextCategory];
+            stringId = ResearchCategoryNames[gResearchNextItem.category];
             if (gResearchProgressStage != RESEARCH_STAGE_DESIGNING)
             {
                 stringId = research_item_get_name(&gResearchNextItem);
diff --git a/src/openrct2/management/Research.cpp b/src/openrct2/management/Research.cpp
index c571268af8..8bcf34f486 100644
--- a/src/openrct2/management/Research.cpp
+++ b/src/openrct2/management/Research.cpp
@@ -45,7 +45,6 @@ uint8  gResearchProgressStage;
 rct_research_item gResearchLastItem;
 uint8  gResearchExpectedMonth;
 uint8  gResearchExpectedDay;
-uint8  gResearchNextCategory;
 rct_research_item gResearchNextItem;
 
 // 0x01358844[500]
@@ -171,7 +170,6 @@ static void research_next_design()
     }
 
     gResearchNextItem      = *researchItem;
-    gResearchNextCategory  = researchItem->category;
     gResearchProgress      = 0;
     gResearchProgressStage = RESEARCH_STAGE_DESIGNING;
 
@@ -437,8 +435,8 @@ void research_reset_current_item()
     }
 
     gResearchLastItem.rawValue = RESEARCHED_ITEMS_SEPARATOR;
-    gResearchProgressStage            = 0;
-    gResearchProgress                 = 0;
+    gResearchProgressStage     = RESEARCH_STAGE_INITIAL_RESEARCH;
+    gResearchProgress          = 0;
 }
 
 /**
diff --git a/src/openrct2/management/Research.h b/src/openrct2/management/Research.h
index 4d572a35f0..39b40b0887 100644
--- a/src/openrct2/management/Research.h
+++ b/src/openrct2/management/Research.h
@@ -104,7 +104,6 @@ extern uint16 gResearchProgress;
 extern uint8 gResearchProgressStage;
 extern uint8 gResearchExpectedMonth;
 extern uint8 gResearchExpectedDay;
-extern uint8 gResearchNextCategory;
 extern rct_research_item gResearchLastItem;
 extern rct_research_item gResearchNextItem;
 
diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index ee5e62b25b..4c7204c4cb 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -2052,7 +2052,6 @@ private:
         gResearchProgress = _s4.research_progress;
         // gResearchProgressStage =
         gResearchNextItem.rawValue = _s4.next_research_item;
-        gResearchNextCategory = _s4.next_research_type;
         // gResearchExpectedDay =
         // gResearchExpectedMonth =
 
diff --git a/src/openrct2/rct2/S6Exporter.cpp b/src/openrct2/rct2/S6Exporter.cpp
index 3488c58d4c..40c36d6797 100644
--- a/src/openrct2/rct2/S6Exporter.cpp
+++ b/src/openrct2/rct2/S6Exporter.cpp
@@ -251,7 +251,7 @@ void S6Exporter::Export()
     // pad_01357CF8
     _s6.next_research_item           = gResearchNextItem.rawValue;
     _s6.research_progress            = gResearchProgress;
-    _s6.next_research_category       = gResearchNextCategory;
+    _s6.next_research_category       = gResearchNextItem.category;
     _s6.next_research_expected_day   = gResearchExpectedDay;
     _s6.next_research_expected_month = gResearchExpectedMonth;
     _s6.guest_initial_happiness      = gGuestInitialHappiness;
diff --git a/src/openrct2/rct2/S6Importer.cpp b/src/openrct2/rct2/S6Importer.cpp
index 481bdf925b..39b606fb9e 100644
--- a/src/openrct2/rct2/S6Importer.cpp
+++ b/src/openrct2/rct2/S6Importer.cpp
@@ -266,11 +266,11 @@ public:
 
         gResearchPriorities                = _s6.active_research_types;
         gResearchProgressStage             = _s6.research_progress_stage;
-        gResearchLastItem.rawValue = _s6.last_researched_item_subject;
+        gResearchLastItem.rawValue  = _s6.last_researched_item_subject;
         // pad_01357CF8
-        gResearchNextItem.rawValue = _s6.next_research_item;
+        gResearchNextItem.rawValue  = _s6.next_research_item;
         gResearchProgress           = _s6.research_progress;
-        gResearchNextCategory       = _s6.next_research_category;
+        gResearchNextItem.category  = _s6.next_research_category;
         gResearchExpectedDay        = _s6.next_research_expected_day;
         gResearchExpectedMonth      = _s6.next_research_expected_month;
         gGuestInitialHappiness      = _s6.guest_initial_happiness;