diff --git a/WiFiManager.cpp b/WiFiManager.cpp
index 8b1e68e..79b7780 100644
--- a/WiFiManager.cpp
+++ b/WiFiManager.cpp
@@ -764,7 +764,7 @@ void WiFiManager::setRemoveDuplicateAPs(boolean removeDuplicates) {
 template <typename Generic>
 void WiFiManager::DEBUG_WM(Generic text) {
   if (_debug) {
-    Serial.print(F("*WM: "));
+    Serial.print("*WM: ");
     Serial.println(text);
   }
 }