diff --git a/src/app/tape/tmainwindow.cpp b/src/app/tape/tmainwindow.cpp
index 56209ef35..1c7de5cff 100644
--- a/src/app/tape/tmainwindow.cpp
+++ b/src/app/tape/tmainwindow.cpp
@@ -2919,6 +2919,16 @@ void TMainWindow::SetDecimals()
     switch (mUnit)
     {
         case Unit::Cm:
+            ui->doubleSpinBoxBaseValue->setDecimals(2);
+            ui->doubleSpinBoxBaseValue->setSingleStep(0.01);
+
+            ui->doubleSpinBoxInSizes->setDecimals(2);
+            ui->doubleSpinBoxInSizes->setSingleStep(0.01);
+
+            ui->doubleSpinBoxInHeights->setDecimals(2);
+            ui->doubleSpinBoxInHeights->setSingleStep(0.01);
+            break;
+        case Unit::Mm:
             ui->doubleSpinBoxBaseValue->setDecimals(1);
             ui->doubleSpinBoxBaseValue->setSingleStep(0.1);
 
@@ -2928,16 +2938,6 @@ void TMainWindow::SetDecimals()
             ui->doubleSpinBoxInHeights->setDecimals(1);
             ui->doubleSpinBoxInHeights->setSingleStep(0.1);
             break;
-        case Unit::Mm:
-            ui->doubleSpinBoxBaseValue->setDecimals(0);
-            ui->doubleSpinBoxBaseValue->setSingleStep(1);
-
-            ui->doubleSpinBoxInSizes->setDecimals(0);
-            ui->doubleSpinBoxInSizes->setSingleStep(1);
-
-            ui->doubleSpinBoxInHeights->setDecimals(0);
-            ui->doubleSpinBoxInHeights->setSingleStep(1);
-            break;
         case Unit::Inch:
             ui->doubleSpinBoxBaseValue->setDecimals(5);
             ui->doubleSpinBoxBaseValue->setSingleStep(0.00001);