diff --git a/src/gui/gui.h b/src/gui/gui.h
index 31a287ef9..1cdfb4f3f 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -2929,7 +2929,7 @@ class FurnaceGUI {
   void doReplace();
   void doDrag();
   void editOptions(bool topMenu);
-  DivSystem systemPicker(bool full_width);
+  DivSystem systemPicker(bool fullWidth);
   void noteInput(int num, int key, int vol=-1);
   void valueInput(int num, bool direct=false, int target=-1);
   void orderInput(int num);
diff --git a/src/gui/sysPicker.cpp b/src/gui/sysPicker.cpp
index fd0046121..6d10ac754 100644
--- a/src/gui/sysPicker.cpp
+++ b/src/gui/sysPicker.cpp
@@ -23,7 +23,7 @@
 #include "guiConst.h"
 #include <imgui.h>
 
-DivSystem FurnaceGUI::systemPicker(bool full_width) {
+DivSystem FurnaceGUI::systemPicker(bool fullWidth) {
   DivSystem ret=DIV_SYSTEM_NULL;
   DivSystem hoveredSys=DIV_SYSTEM_NULL;
   bool reissueSearch=false;
@@ -61,7 +61,7 @@ DivSystem FurnaceGUI::systemPicker(bool full_width) {
       }
     }
   }
- if (ImGui::BeginTable("SysList",1,ImGuiTableFlags_ScrollY,ImVec2(full_width ? ImGui::GetContentRegionAvail().x : 500.0f*dpiScale,200.0f*dpiScale))) {
+ if (ImGui::BeginTable("SysList",1,ImGuiTableFlags_ScrollY,ImVec2(fullWidth ? ImGui::GetContentRegionAvail().x : 500.0f*dpiScale,200.0f*dpiScale))) {
     if (sysSearchQuery.empty()) {
       // display chip list
       for (int j=0; curSysSection[j]; j++) {