diff --git a/r5dev/sdklauncher/basepanel.cpp b/r5dev/sdklauncher/basepanel.cpp
index 61563fbf..ac221ad6 100644
--- a/r5dev/sdklauncher/basepanel.cpp
+++ b/r5dev/sdklauncher/basepanel.cpp
@@ -751,7 +751,7 @@ eLaunchMode CUIBaseSurface::BuildParameter(string& svParameters)
 		// MAIN ###############################################################
 		if (!String::IsNullOrEmpty(this->m_HostNameTextBox->Text()))
 		{
-			svParameters.append("+sv_pylonHostName \"" + this->m_HostNameTextBox->Text() + "\" ");
+			svParameters.append("+hostname \"" + this->m_HostNameTextBox->Text() + "\" ");
 
 			switch (static_cast<eVisibility>(this->m_VisibilityCombo->SelectedIndex()))
 			{
@@ -845,7 +845,7 @@ eLaunchMode CUIBaseSurface::BuildParameter(string& svParameters)
 		// MAIN ###############################################################
 		if (!String::IsNullOrEmpty(this->m_HostNameTextBox->Text()))
 		{
-			svParameters.append("+sv_pylonHostName \"" + this->m_HostNameTextBox->Text() + "\" ");
+			svParameters.append("+hostname \"" + this->m_HostNameTextBox->Text() + "\" ");
 
 			switch (static_cast<eVisibility>(this->m_VisibilityCombo->SelectedIndex()))
 			{