diff --git a/qrenderdoc/Windows/PythonShell.cpp b/qrenderdoc/Windows/PythonShell.cpp
index aaabd75f3..43104a138 100644
--- a/qrenderdoc/Windows/PythonShell.cpp
+++ b/qrenderdoc/Windows/PythonShell.cpp
@@ -45,6 +45,8 @@ PythonShell::PythonShell(ICaptureContext &ctx, QWidget *parent)
 
   scriptEditor = new ScintillaEdit(this);
 
+  scriptEditor->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
+
   scriptEditor->setMarginLeft(4);
   scriptEditor->setMarginWidthN(0, 32);
   scriptEditor->setMarginWidthN(1, 0);
diff --git a/qrenderdoc/Windows/ShaderViewer.cpp b/qrenderdoc/Windows/ShaderViewer.cpp
index 74a3a6dc0..8747f4132 100644
--- a/qrenderdoc/Windows/ShaderViewer.cpp
+++ b/qrenderdoc/Windows/ShaderViewer.cpp
@@ -23,6 +23,7 @@
  ******************************************************************************/
 
 #include "ShaderViewer.h"
+#include <QFontDatabase>
 #include <QHBoxLayout>
 #include <QListWidget>
 #include <QMenu>
@@ -559,6 +560,8 @@ ScintillaEdit *ShaderViewer::MakeEditor(const QString &name, const QString &text
   ret->setMarginWidthN(2, 16);
   ret->setObjectName(name);
 
+  ret->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
+
   // C# DarkGreen
   ret->indicSetFore(INDICATOR_REGHIGHLIGHT, SCINTILLA_COLOUR(0, 100, 0));
   ret->indicSetStyle(INDICATOR_REGHIGHLIGHT, INDIC_ROUNDBOX);