diff --git a/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp b/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp
index 7eade0b77d..4fa2e0c926 100644
--- a/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp
+++ b/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp
@@ -49,7 +49,7 @@ MappingButton::MappingButton(MappingWidget* parent, ControlReference* ref, bool
   setFixedHeight(minimumSizeHint().height());
 
   // Make sure that long entries don't throw our layout out of whack.
-  setFixedWidth(112);
+  setFixedWidth(WIDGET_MAX_WIDTH);
 
   setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
 
diff --git a/Source/Core/DolphinQt/Config/Mapping/MappingNumeric.cpp b/Source/Core/DolphinQt/Config/Mapping/MappingNumeric.cpp
index cab6c68d9b..b2231f8ec6 100644
--- a/Source/Core/DolphinQt/Config/Mapping/MappingNumeric.cpp
+++ b/Source/Core/DolphinQt/Config/Mapping/MappingNumeric.cpp
@@ -15,6 +15,8 @@ MappingDouble::MappingDouble(MappingWidget* parent, ControllerEmu::NumericSettin
   setRange(m_setting.GetMinValue(), m_setting.GetMaxValue());
   setDecimals(2);
 
+  setFixedWidth(WIDGET_MAX_WIDTH);
+
   if (const auto ui_suffix = m_setting.GetUISuffix())
     setSuffix(QStringLiteral(" ") + tr(ui_suffix));
 
diff --git a/Source/Core/DolphinQt/Config/Mapping/MappingWidget.h b/Source/Core/DolphinQt/Config/Mapping/MappingWidget.h
index 1b66a92a4d..cd06a3ded8 100644
--- a/Source/Core/DolphinQt/Config/Mapping/MappingWidget.h
+++ b/Source/Core/DolphinQt/Config/Mapping/MappingWidget.h
@@ -10,6 +10,8 @@
 #include <QString>
 #include <QWidget>
 
+constexpr int WIDGET_MAX_WIDTH = 112;
+
 class ControlGroupBox;
 class InputConfig;
 class IOWindow;