diff --git a/sdlpp/sdlpp_textrenderer.cpp b/sdlpp/sdlpp_textrenderer.cpp
index 101d881..30abd31 100644
--- a/sdlpp/sdlpp_textrenderer.cpp
+++ b/sdlpp/sdlpp_textrenderer.cpp
@@ -7,7 +7,7 @@ TextRenderer::TextRenderer( double x, double y, double w, double h,
 TextRenderer::TextRenderer( double x, double y, double w, double h,
                             std::shared_ptr< Renderer > &r, Font &font,
                             const std::string &text, const std::string &color,
-                            const std::string &outline_color, int outline_size,
+                            const std::string &outline_color, double outline_size,
                             int flags )
         : RectangleRender( x, y, w, h, r ) {
     position_flags = flags;
@@ -16,14 +16,21 @@ TextRenderer::TextRenderer( double x, double y, double w, double h,
 void TextRenderer::setText( Font &font, const std::string &text,
                             const std::string &color,
                             const std::string &outline_color,
-                            int outline_size ) {
+                            double outline_size ) {
     _text = text;
     setTextColor( font, color, outline_color, outline_size );
 }
 void TextRenderer::setTextColor( Font &font, const std::string &color,
                                  const std::string &outline_color,
-                                 int outline_size ) {
-    setTexture( font, _text, color, outline_color, outline_size );
+                                 double outline_size ) {
+    int fontSize = 0.6 * getRect().h;
+    font.changeFontSize(fontSize);
+    int intOutline = outline_size;
+    if(intOutline != -1) {
+        intOutline = outline_size * fontSize;
+    }
+    setTexture( font, _text, color, outline_color, intOutline );
+    font.revertSize();
     updateDstRect();
 }
 void TextRenderer::changeText( const std::string &text ) {
diff --git a/sdlpp/sdlpp_textrenderer.hpp b/sdlpp/sdlpp_textrenderer.hpp
index f54ce7f..b4ed2ea 100644
--- a/sdlpp/sdlpp_textrenderer.hpp
+++ b/sdlpp/sdlpp_textrenderer.hpp
@@ -17,14 +17,14 @@ public:
                   std::shared_ptr< Renderer > &r, Font &font,
                   const std::string &text, const std::string &color = "FFFFFF",
                   const std::string &outline_color = "000000",
-                  int outline_size = -1, int flags = SDLPP_TEXT_CENTER );
+                  double outline_size = -1, int flags = SDLPP_TEXT_CENTER );
     void setText( Font &font, const std::string &text,
                   const std::string &color = "FFFFFF",
                   const std::string &outline_color = "000000",
-                  int outline_size = -1 );
+                  double outline_size = -1 );
     void setTextColor( Font &font, const std::string &color = "FFFFFF",
                        const std::string &outline_color = "000000",
-                       int outline_size = -1 );
+                       double outline_size = -1 );
     void changeText( const std::string &text );
     void setFlags( int flags );
     virtual void render() override;