diff --git a/common/font/outline_decomposer.cpp b/common/font/outline_decomposer.cpp
index 257a1b13d9..adcff67df4 100644
--- a/common/font/outline_decomposer.cpp
+++ b/common/font/outline_decomposer.cpp
@@ -160,7 +160,7 @@ bool OUTLINE_DECOMPOSER::approximateQuadraticBezierCurve( GLYPH_POINTS&       aR
     // cp0 = qp0, cp1 = qp0 + 2/3 * (qp1 - qp0), cp2 = qp2 + 2/3 * (qp1 - qp2), cp3 = qp2
 
     GLYPH_POINTS cubic;
-    cubic.resize( 4 );
+    cubic.reserve( 4 );
 
     cubic.push_back( aBezier[0] );                                           // cp0
     cubic.push_back( aBezier[0] + ( ( aBezier[1] - aBezier[0] ) * 2 / 3 ) ); // cp1
diff --git a/common/font/stroke_font.cpp b/common/font/stroke_font.cpp
index 6c71ce5b0d..5ac6cd170d 100644
--- a/common/font/stroke_font.cpp
+++ b/common/font/stroke_font.cpp
@@ -236,13 +236,11 @@ VECTOR2I STROKE_FONT::GetTextAsGlyphs( BOX2I* aBBox, std::vector<std::unique_ptr
 
     for( wxUniChar c : aText )
     {
-        if( c >= (int) m_glyphBoundingBoxes->size() || c < 0 )
+        if( c >= (int) m_glyphBoundingBoxes->size() || c < ' ' )
         {
             // Filtering non existing glyphes and non printable chars
             if( c == '\t' )
                 c = ' ';
-            else if( c < ' ' )      // Non printable char
-                c = '?';
             else
                 c = '?';
         }