diff --git a/include/GenericToolbox.Macro.h b/include/GenericToolbox.Macro.h
index d32ab2f..31d7e53 100644
--- a/include/GenericToolbox.Macro.h
+++ b/include/GenericToolbox.Macro.h
@@ -31,7 +31,7 @@
 #endif // HAS_CPP_11
 
 
-//#define WARN_DEPRECATED_FCT
+#define WARN_DEPRECATED_FCT /* Always flag deprecation */
 #ifndef WARN_DEPRECATED_FCT
 #define GT_DEPRECATED(msg_) // nothing
 #else
diff --git a/include/GenericToolbox.Utils.h b/include/GenericToolbox.Utils.h
index c7c4a25..6d97c7d 100644
--- a/include/GenericToolbox.Utils.h
+++ b/include/GenericToolbox.Utils.h
@@ -422,11 +422,12 @@ namespace GenericToolbox{
     [[nodiscard]] bool hasBound() const{ return hasLowerBound() or hasUpperBound(); }
     [[nodiscard]] bool hasBothBounds() const{ return hasLowerBound() and hasUpperBound(); }
     [[nodiscard]] bool isUnbounded() const{ return not hasBound(); }
-    [[nodiscard]] bool isBellowMin(double val_) const{ return (hasLowerBound() and val_ < min); }
+    [[nodiscard]] bool isBelowMin(double val_) const{ return (hasLowerBound() and val_ < min); }
+    [[nodiscard]] GT_DEPRECATED("replace with isBelowMin()") bool isBellowMin(double val_) const { return isBelowMin(val_); }
     [[nodiscard]] bool isAboveMax(double val_) const{ return (hasUpperBound() and val_ > max); }
     [[nodiscard]] bool isInBounds(double val_) const{
       // both bounds are inclusive [min, max]
-      if( isBellowMin(val_) ){ return false; }
+      if( isBelowMin(val_) ){ return false; }
       if( isAboveMax(val_) ){ return false; }
       return true;
     }