diff --git a/ue-package.ps1 b/ue-package.ps1
index 9599cb1..044e206 100644
--- a/ue-package.ps1
+++ b/ue-package.ps1
@@ -229,6 +229,12 @@ try {
     }
 
     
+    # We need to build the host Editor target explicitly first, which will be used
+    # to run the "Cook" stage. If we don't do this, then any source plugins will
+    # be missing in a clean checkout build and the cook stage will fail
+    Write-Output "Building Editor (for Cooking)"
+    ue-build.ps1 -mode:dev -src:$src -nocloseeditor -dryrun:$dryrun
+
     $ueEditorCmd = Get-UEEditorCmd $ueVersion $ueinstall
     $runUAT = Join-Path $ueinstall "Engine/Build/BatchFiles/RunUAT$batchSuffix"