diff --git a/src/GenerationGUI/GenerationGUI_RevolDlg.cxx b/src/GenerationGUI/GenerationGUI_RevolDlg.cxx
index 0c4a91703..f8ceba68a 100644
--- a/src/GenerationGUI/GenerationGUI_RevolDlg.cxx
+++ b/src/GenerationGUI/GenerationGUI_RevolDlg.cxx
@@ -109,7 +109,7 @@ void GenerationGUI_RevolDlg::Init()
 {
   // min, max, step and decimals for spin boxes & initial values
   double SpecificStep = 5;
-  initSpinBox(GroupPoints->SpinBox_DX, 0.0, 360.0, SpecificStep, 3); // VSR: TODO: DBL_DIGITS_DISPLAY
+  initSpinBox(GroupPoints->SpinBox_DX, -360.0, 360.0, SpecificStep, 3); // VSR: TODO: DBL_DIGITS_DISPLAY
   GroupPoints->SpinBox_DX->setValue(45.0);
 
   // init variables