diff --git a/contents/code/main.js b/contents/code/main.js
index bed285b..a016d17 100644
--- a/contents/code/main.js
+++ b/contents/code/main.js
@@ -5,8 +5,6 @@
 
 // Desktop numbers are from zero (unlike how it worked in plasma 5)
 
-
-const MIN_DESKTOPS = 2;
 const LOG_LEVEL = 2; // 0 trace, 1 debug, 2 info
 
 
@@ -98,6 +96,11 @@ const compat = isKde6
 
 /*****  Logic definition  *****/
 
+// Wrappers for reading config values
+// This keeps default values in one place, 
+// which are also needed for readConfig to correctly derive the type
+function getMinDesktops() {return readConfig("minDesktops", 2);}
+function getKeepEmptyMiddleDesktops() {return readConfig("keepEmptyMiddleDesktops", false);}
 
 // shifts a window to the left if it's more to the right than number
 function shiftRighterThan(client, number)
@@ -146,7 +149,7 @@ function removeDesktop(number)
 		debug("Not removing desktop at end");
 		return false;
 	}
-	if (desktopsLength <= MIN_DESKTOPS)
+	if (desktopsLength <= getMinDesktops())
 	{
 		debug("Not removing desktop, too few left");
 		return false;
@@ -238,7 +241,6 @@ function onDesktopSwitch(oldDesktop)
 	const oldDesktopIndex = compat.findDesktop(allDesktops, compat.toDesktop(oldDesktop));
 	const currentDesktopIndex = compat.findDesktop(allDesktops, compat.toDesktop(workspace.currentDesktop));
 	const getDesktopsLength = () => compat.workspaceDesktops().length;
-	const keepEmptyMiddleDesktops = readConfig("keepEmptyMiddleDesktops", false);
 
 	if (oldDesktopIndex <= currentDesktopIndex)
 	{
@@ -246,19 +248,28 @@ function onDesktopSwitch(oldDesktop)
 		return;
 	}
 
+	// Calculate the index of the last desktop we want to preserve when cleaning up.
+	// We need to preserve:
+	//   1. The current desktop (currentDesktopIndex)
+	//   2. At least MIN_DESKTOPS. Note we actually subtract two because:
+	//      - We always have the dynamic empty desktop at the end 
+	//      - MIN_DESKTOPS is a count, but we need an index
+	const preserveUpToIndex = Math.max(currentDesktopIndex, getMinDesktops() - 2);
+	
 	// Loop through desktops right-to-left and delete empty ones:
 	// - Starts from second-to-last desktop (preserving always one empty desktop at the end)
 	// - Stops before reaching current desktop (preserves what user is viewing)
-	// - Extra check (desktopIdx > 0) prevents an infinite loop caused by abnormal conditions
-	//   In case of interference with other plugins, we'll only examine as many desktops as we initially detect
-	for (let desktopIdx = getDesktopsLength() - 2; desktopIdx > currentDesktopIndex && desktopIdx > 0; --desktopIdx)
+	// - Stops before reaching minimum number of desktops
+	// To prevent an infinite loop caused by abnormal conditions (e.g. interference with other plugins),
+	// we only examine as many desktops as we initially detect.
+	for (let desktopIdx = getDesktopsLength() - 2; desktopIdx > preserveUpToIndex; --desktopIdx)
 	{
 		debug(`Examine desktop ${desktopIdx}`);
 		if (isEmptyDesktop(desktopIdx))
 		{
 			removeDesktop(desktopIdx);
 		}
-		else if (keepEmptyMiddleDesktops)
+		else if (getKeepEmptyMiddleDesktops())
 		{
 			debug("Found non-empty desktop, stopping purge");
 			break;
diff --git a/contents/config/main.xml b/contents/config/main.xml
index 6adec06..2198f11 100644
--- a/contents/config/main.xml
+++ b/contents/config/main.xml
@@ -9,6 +9,11 @@
     <entry name="keepEmptyMiddleDesktops" type="Bool">
       <default>false</default>
     </entry>
+    <entry name="minDesktops" type="UInt">
+      <default>2</default>
+      <min>2</min> <!-- One occupied desktop plus one empty dynamic desktop at the end -->
+      <max>20</max> <!-- KDE Plasma has a built-in limit of 20 virtual desktops -->
+    </entry>
   </group>
 
 </kcfg>
\ No newline at end of file
diff --git a/contents/ui/config.ui b/contents/ui/config.ui
index e586aa9..57c299b 100644
--- a/contents/ui/config.ui
+++ b/contents/ui/config.ui
@@ -21,6 +21,24 @@
         </property>
       </widget>
     </item>
+    <item>
+      <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+          <widget class="QLabel" name="minDesktopsLabel">
+            <property name="text">
+              <string>Minimal number of desktops:</string>
+            </property>
+            <property name="buddy">
+              <cstring>kcfg_minDesktops</cstring>
+            </property>
+          </widget>
+        </item>
+        <item>
+          <widget class="QSpinBox" name="kcfg_minDesktops">
+          </widget>
+        </item>
+      </layout>
+    </item>
   </layout>
  </widget>
  <resources/>