diff --git a/libs/debugging/debugging.h b/libs/debugging/debugging.h
index 642283fd..4c03e9d7 100644
--- a/libs/debugging/debugging.h
+++ b/libs/debugging/debugging.h
@@ -112,17 +112,17 @@ inline DebugMessageHandler& globalDebugMessageHandler()
 #if defined(DEBUG_ASSERTS)
 
 /// \brief Sends a \p message to the current debug-message-handler text-output-stream if \p condition evaluates to false.
-#define ASSERT_MESSAGE(condition, message)\
+#define ASSERT_MESSAGE(condition, message) do{\
 if(!(condition))\
 {\
   globalDebugMessageHandler().getOutputStream() << FILE_LINE "\nassertion failure: " << message << "\n";\
   if(!globalDebugMessageHandler().handleMessage()) { DEBUGGER_BREAKPOINT(); }\
-} else\
+}} while(0)
 
 /// \brief Sends a \p message to the current debug-message-handler text-output-stream.
-#define ERROR_MESSAGE(message)\
+#define ERROR_MESSAGE(message) do{\
 globalDebugMessageHandler().getOutputStream() << FILE_LINE "\nruntime error: " << message << "\n";\
-if(!globalDebugMessageHandler().handleMessage()) { DEBUGGER_BREAKPOINT(); } else\
+if(!globalDebugMessageHandler().handleMessage()) { DEBUGGER_BREAKPOINT(); }} while(0)
 
 #define ASSERT_NOTNULL(ptr) ASSERT_MESSAGE(ptr != 0, "pointer \"" #ptr "\" is null")
 
diff --git a/radiant/brush.h b/radiant/brush.h
index 4542faf2..04d3d1ff 100644
--- a/radiant/brush.h
+++ b/radiant/brush.h
@@ -3099,7 +3099,7 @@ public:
         m_face->getWinding()[2].vertex
       ),
       "update_move_planepts_vertex2: error"
-    )
+    );
 
     m_face->m_move_planepts[0] = m_face->getWinding()[opposite].vertex;
     m_face->m_move_planepts[1] = m_face->getWinding()[index].vertex;
diff --git a/radiant/dialog.cpp b/radiant/dialog.cpp
index c3ef12bf..cb5c7069 100644
--- a/radiant/dialog.cpp
+++ b/radiant/dialog.cpp
@@ -378,14 +378,14 @@ Dialog::~Dialog()
 
 void Dialog::ShowDlg()
 {
-  ASSERT_MESSAGE(m_window != 0, "dialog was not constructed")
+  ASSERT_MESSAGE(m_window != 0, "dialog was not constructed");
   importData();
   gtk_widget_show(GTK_WIDGET(m_window));
 }
 
 void Dialog::HideDlg()
 {
-  ASSERT_MESSAGE(m_window != 0, "dialog was not constructed")
+  ASSERT_MESSAGE(m_window != 0, "dialog was not constructed");
   exportData();
   gtk_widget_hide(GTK_WIDGET(m_window));
 }
@@ -399,7 +399,7 @@ static gint delete_event_callback(GtkWidget *widget, GdkEvent* event, gpointer d
 
 void Dialog::Create()
 {
-  ASSERT_MESSAGE(m_window == 0, "dialog cannot be constructed")
+  ASSERT_MESSAGE(m_window == 0, "dialog cannot be constructed");
 
   m_window = BuildDialog();
   g_signal_connect(G_OBJECT(m_window), "delete_event", G_CALLBACK(delete_event_callback), this);
diff --git a/radiant/mainframe.cpp b/radiant/mainframe.cpp
index 6af2cf8f..785d86ac 100644
--- a/radiant/mainframe.cpp
+++ b/radiant/mainframe.cpp
@@ -3310,7 +3310,11 @@ void GlobalGL_sharedContextCreated()
   GlobalShaderCache().realise();
   Textures_Realise();
 
+#ifdef __linux__
+  g_font = glfont_create("fixed 8");
+#else
   g_font = glfont_create("courier 8");
+#endif
   GlobalOpenGL().m_font = g_font.getDisplayList();
   GlobalOpenGL().m_fontHeight = g_font.getPixelHeight();
 }