diff --git a/VECTOAux/VectoAuxiliaries/UI/frmAuxiliaryConfig.vb b/VECTOAux/VectoAuxiliaries/UI/frmAuxiliaryConfig.vb
index 714776af7a77f1c10dcc95649a0b4f4db3b41757..86f39ecccb8156ac1592bc7686000a717c5afc6b 100644
--- a/VECTOAux/VectoAuxiliaries/UI/frmAuxiliaryConfig.vb
+++ b/VECTOAux/VectoAuxiliaries/UI/frmAuxiliaryConfig.vb
@@ -510,7 +510,7 @@ Public Class frmAuxiliaryConfig
 
     Public Function ValidateAll() As Boolean
 
-        If Validate_Pneumatics() = False OrElse Validate_Electrics() = False OrElse Validate_Pneumatics() = False Then
+        If Validate_Pneumatics() = False OrElse Validate_Electrics() = False OrElse Validate_HVAC() = False Then
 
             Return False