diff --git a/3d-viewer/vrml_v1_modelparser.cpp b/3d-viewer/vrml_v1_modelparser.cpp
index 4f784afecf..975af17b54 100644
--- a/3d-viewer/vrml_v1_modelparser.cpp
+++ b/3d-viewer/vrml_v1_modelparser.cpp
@@ -212,7 +212,7 @@ int VRML1_MODEL_PARSER::readCoordinate3()
 
     // DBG( printf( "  readCoordinate3\n" ) );
 
-    while( GetNextTag( m_file, text, sizeof(text) ) )
+    while( GetNextTag( m_file, text, sizeof( text ) ) )
     {
         if( *text == ']' )
         {
@@ -401,12 +401,14 @@ int VRML1_MODEL_PARSER::readIndexedFaceSet_coordIndex()
             || (coord[0] == coord[2])
             || (coord[2] == coord[1]) )
         {
-            wxLogTrace( traceVrmlV1Parser, wxT( "    invalid coordIndex at index %u (%d, %d, %d, %d)" ), (unsigned int)m_model->m_CoordIndex.size() + 1,coord[0], coord[1], coord[2], dummy );
+            wxLogTrace( traceVrmlV1Parser, wxT( "    invalid coordIndex at index %zu (%d, %d, %d, %d)" ),
+                        m_model->m_CoordIndex.size() + 1, coord[0], coord[1], coord[2], dummy );
         }
 
         if( dummy != -1 )
         {
-            wxLogTrace( traceVrmlV1Parser, wxT( "    Error at index %u, -1 Expected, got %d" ), (unsigned int)m_model->m_CoordIndex.size() + 1, dummy );
+            wxLogTrace( traceVrmlV1Parser, wxT( "    Error at index %zu, -1 Expected, got %d" ),
+                        m_model->m_CoordIndex.size() + 1, dummy );
         }
 
         m_model->m_CoordIndex.push_back( coord_list );
diff --git a/3d-viewer/vrml_v2_modelparser.cpp b/3d-viewer/vrml_v2_modelparser.cpp
index 28a138d394..aa7e8f35a3 100644
--- a/3d-viewer/vrml_v2_modelparser.cpp
+++ b/3d-viewer/vrml_v2_modelparser.cpp
@@ -403,7 +403,7 @@ int VRML2_MODEL_PARSER::read_Transform()
                         m_model->m_rotation[0],
                         m_model->m_rotation[1],
                         m_model->m_rotation[2],
-                              m_model->m_rotation[3] );
+                        m_model->m_rotation[3] );
         }
         else if( strcmp( text, "scale" ) == 0 )
         {
@@ -1528,7 +1528,7 @@ int VRML2_MODEL_PARSER::read_colorIndex()
             }
         }
 
-        wxLogTrace( traceVrmlV2Parser, m_debugSpacer + wxT( "read_colorIndex m_MaterialIndexPerVertex.size: %lu" ), m_model->m_MaterialIndexPerVertex.size() );
+        wxLogTrace( traceVrmlV2Parser, m_debugSpacer + wxT( "read_colorIndex m_MaterialIndexPerVertex.size: %zu" ), m_model->m_MaterialIndexPerVertex.size() );
     }
     else
     {
@@ -1542,7 +1542,7 @@ int VRML2_MODEL_PARSER::read_colorIndex()
             m_model->m_MaterialIndexPerFace.push_back( index );
         }
 
-        wxLogTrace( traceVrmlV2Parser, m_debugSpacer + wxT( "read_colorIndex m_MaterialIndexPerFace.size: %lu" ), m_model->m_MaterialIndexPerFace.size() );
+        wxLogTrace( traceVrmlV2Parser, m_debugSpacer + wxT( "read_colorIndex m_MaterialIndexPerFace.size: %zu" ), m_model->m_MaterialIndexPerFace.size() );
     }
 
     debug_exit();