diff --git a/docsrc/manual/project-files.rst b/docsrc/manual/project-files.rst
index e4f0479b..8e0dfa33 100644
--- a/docsrc/manual/project-files.rst
+++ b/docsrc/manual/project-files.rst
@@ -45,7 +45,6 @@ The filepath that Porymap expects for each file can be overridden on the ``Files
    src/data/region_map/region_map_sections.json, yes, yes, ``json_region_map_entries``,
    src/data/region_map/porymap_config.json, yes, yes, ``json_region_porymap_cfg``,
    include/constants/global.h, yes, no, ``constants_global``, reads ``define_obj_event_count``
-   include/constants/map_groups.h, no, yes, ``constants_map_groups``,
    include/constants/items.h, yes, no, ``constants_items``, for Hidden Item events
    include/constants/flags.h, yes, no, ``constants_flags``, for Object and Hidden Item events
    include/constants/vars.h, yes, no, ``constants_vars``, for Trigger events
diff --git a/include/config.h b/include/config.h
index 6b64b612..2a93a793 100644
--- a/include/config.h
+++ b/include/config.h
@@ -254,7 +254,6 @@ enum ProjectFilePath {
     data_pokemon_gfx,
     data_heal_locations,
     constants_global,
-    constants_map_groups,
     constants_items,
     constants_flags,
     constants_vars,
diff --git a/include/project.h b/include/project.h
index efb7db7c..f35fc403 100644
--- a/include/project.h
+++ b/include/project.h
@@ -172,7 +172,6 @@ public:
     void saveMapGroups();
     void saveRegionMapSections();
     void saveWildMonData();
-    void saveMapConstantsHeader();
     void saveHealLocations(Map*);
     void saveTilesets(Tileset*, Tileset*);
     void saveTilesetMetatileLabels(Tileset*, Tileset*);
diff --git a/src/config.cpp b/src/config.cpp
index 3d604da6..a1987203 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -152,7 +152,6 @@ const QMap<ProjectFilePath, QPair<QString, QString>> ProjectConfig::defaultPaths
     {ProjectFilePath::data_pokemon_gfx,                 { "data_pokemon_gfx",                "src/data/graphics/pokemon.h"}},
     {ProjectFilePath::data_heal_locations,              { "data_heal_locations",             "src/data/heal_locations.h"}},
     {ProjectFilePath::constants_global,                 { "constants_global",                "include/constants/global.h"}},
-    {ProjectFilePath::constants_map_groups,             { "constants_map_groups",            "include/constants/map_groups.h"}},
     {ProjectFilePath::constants_items,                  { "constants_items",                 "include/constants/items.h"}},
     {ProjectFilePath::constants_flags,                  { "constants_flags",                 "include/constants/flags.h"}},
     {ProjectFilePath::constants_vars,                   { "constants_vars",                  "include/constants/vars.h"}},
diff --git a/src/project.cpp b/src/project.cpp
index 88e3d9d1..22487a13 100644
--- a/src/project.cpp
+++ b/src/project.cpp
@@ -840,43 +840,6 @@ void Project::saveWildMonData() {
     wildEncountersFile.close();
 }
 
-void Project::saveMapConstantsHeader() {
-    QString text = QString("#ifndef GUARD_CONSTANTS_MAP_GROUPS_H\n");
-    text += QString("#define GUARD_CONSTANTS_MAP_GROUPS_H\n");
-    text += QString("\n//\n// DO NOT MODIFY THIS FILE! It is auto-generated from %1\n//\n\n")
-                    .arg(projectConfig.getFilePath(ProjectFilePath::json_map_groups));
-
-    int groupNum = 0;
-    for (QStringList mapNames : groupedMapNames) {
-        text += "// " + groupNames.at(groupNum) + "\n";
-        int maxLength = 0;
-        for (QString mapName : mapNames) {
-            QString mapConstantName = mapNamesToMapConstants.value(mapName);
-            if (mapConstantName.length() > maxLength)
-                maxLength = mapConstantName.length();
-        }
-        int groupIndex = 0;
-        for (QString mapName : mapNames) {
-            QString mapConstantName = mapNamesToMapConstants.value(mapName);
-            text += QString("#define %1%2(%3 | (%4 << 8))\n")
-                    .arg(mapConstantName)
-                    .arg(QString(" ").repeated(maxLength - mapConstantName.length() + 1))
-                    .arg(groupIndex)
-                    .arg(groupNum);
-            groupIndex++;
-        }
-        text += QString("\n");
-        groupNum++;
-    }
-
-    text += QString("#define MAP_GROUPS_COUNT %1\n\n").arg(groupNum);
-    text += QString("#endif // GUARD_CONSTANTS_MAP_GROUPS_H\n");
-
-    QString mapGroupFilepath = root + "/" + projectConfig.getFilePath(ProjectFilePath::constants_map_groups);
-    ignoreWatchedFileTemporarily(mapGroupFilepath);
-    saveTextFile(mapGroupFilepath, text);
-}
-
 void Project::saveHealLocations(Map *map) {
     this->saveHealLocationsData(map);
     this->saveHealLocationsConstants();
@@ -1469,7 +1432,6 @@ void Project::saveAllDataStructures() {
     saveMapLayouts();
     saveMapGroups();
     saveRegionMapSections();
-    saveMapConstantsHeader();
     saveWildMonData();
     saveConfig();
     this->hasUnsavedDataChanges = false;