diff --git a/UI/installer/mp-installer.nsi b/UI/installer/mp-installer.nsi
index 371198bc3..a80655d05 100644
--- a/UI/installer/mp-installer.nsi
+++ b/UI/installer/mp-installer.nsi
@@ -232,6 +232,8 @@ Function PreReqCheck
 
 	OBSInstallerUtils::AddInUseFileCheck "$INSTDIR\data\obs-plugins\win-capture\graphics-hook32.dll"
 	OBSInstallerUtils::AddInUseFileCheck "$INSTDIR\data\obs-plugins\win-capture\graphics-hook64.dll"
+	OBSInstallerUtils::AddInUseFileCheck "$INSTDIR\data\obs-plugins\win-dshow\obs-virtualcam-module32.dll"
+	OBSInstallerUtils::AddInUseFileCheck "$INSTDIR\data\obs-plugins\win-dshow\obs-virtualcam-module64.dll"
 	OBSInstallerUtils::AddInUseFileCheck "$APPDATA\obs-studio-hook\graphics-hook32.dll"
 	OBSInstallerUtils::AddInUseFileCheck "$APPDATA\obs-studio-hook\graphics-hook64.dll"
 	OBSInstallerUtils::GetAppNameForInUseFiles