diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index 95e79d1ead..5fd34e887f 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -37,6 +37,7 @@
 - Fix: [#22339] Printing ui.tool.cursor in console crashes the game.
 - Fix: [#22348] Progress bar screen doesn’t handle window resizing.
 - Fix: [#22389] Alpine coaster has wrong tunnel entrance type.
+- Fix: [#22435] [Plugin] Off-by-one pixel issue in active widget width and height setters.
 
 0.4.12 (2024-07-07)
 ------------------------------------------------------------------------
diff --git a/src/openrct2-ui/scripting/ScWidget.hpp b/src/openrct2-ui/scripting/ScWidget.hpp
index 37f05a95f9..5bb00ccd7f 100644
--- a/src/openrct2-ui/scripting/ScWidget.hpp
+++ b/src/openrct2-ui/scripting/ScWidget.hpp
@@ -207,7 +207,7 @@ namespace OpenRCT2::Scripting
             auto widget = GetWidget();
             if (widget != nullptr)
             {
-                return widget->width();
+                return widget->width() + 1;
             }
             return 0;
         }
@@ -216,7 +216,7 @@ namespace OpenRCT2::Scripting
             auto widget = GetWidget();
             if (widget != nullptr)
             {
-                auto delta = widget->left + value - widget->right;
+                auto delta = widget->left + value - (widget->right + 1);
 
                 Invalidate();
                 widget->right += delta;
@@ -246,7 +246,7 @@ namespace OpenRCT2::Scripting
             auto widget = GetWidget();
             if (widget != nullptr)
             {
-                return widget->height();
+                return widget->height() + 1;
             }
             return 0;
         }
@@ -255,7 +255,7 @@ namespace OpenRCT2::Scripting
             auto widget = GetWidget();
             if (widget != nullptr)
             {
-                auto delta = widget->top + value - widget->bottom;
+                auto delta = widget->top + value - (widget->bottom + 1);
 
                 Invalidate();
                 widget->bottom += delta;