diff --git a/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.cpp b/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.cpp
index 8d9d0467c1..dc0d90027f 100644
--- a/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.cpp
+++ b/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.cpp
@@ -565,7 +565,7 @@ void SoFCIndexedFaceSet::drawFaces(SoGLRenderAction *action)
     SbBool mode = Gui::SoFCInteractiveElement::get(state);
 
     unsigned int num = this->coordIndex.getNum()/4;
-    if (mode == false || num <= this->renderTriangleLimit) {
+    if (!mode || num <= this->renderTriangleLimit) {
 #ifdef RENDER_GLARRAYS
         SoMaterialBindingElement::Binding matbind =
             SoMaterialBindingElement::get(state);
diff --git a/src/Mod/Mesh/Gui/SoFCMeshObject.cpp b/src/Mod/Mesh/Gui/SoFCMeshObject.cpp
index 777fbd2105..c656bbc302 100644
--- a/src/Mod/Mesh/Gui/SoFCMeshObject.cpp
+++ b/src/Mod/Mesh/Gui/SoFCMeshObject.cpp
@@ -649,7 +649,7 @@ void SoFCMeshObjectShape::GLRender(SoGLRenderAction *action)
         if (SoShapeHintsElement::getVertexOrdering(state) == SoShapeHintsElement::CLOCKWISE) 
             ccw = false;
 
-        if (mode == false || mesh->countFacets() <= this->renderTriangleLimit) {
+        if (!mode || mesh->countFacets() <= this->renderTriangleLimit) {
             if (mbind != OVERALL) {
                 drawFaces(mesh, &mb, mbind, needNormals, ccw);
             }
@@ -1303,7 +1303,7 @@ void SoFCMeshSegmentShape::GLRender(SoGLRenderAction *action)
         if (SoShapeHintsElement::getVertexOrdering(state) == SoShapeHintsElement::CLOCKWISE) 
             ccw = false;
 
-        if (mode == false || mesh->countFacets() <= this->renderTriangleLimit) {
+        if (!mode || mesh->countFacets() <= this->renderTriangleLimit) {
             if (mbind != OVERALL)
                 drawFaces(mesh, &mb, mbind, needNormals, ccw);
             else