diff --git a/builder/vagrant/builder.go b/builder/vagrant/builder.go
index 263fb6b76..c5110ede6 100644
--- a/builder/vagrant/builder.go
+++ b/builder/vagrant/builder.go
@@ -138,9 +138,12 @@ type Config struct {
 	AddInsecure bool `mapstructure:"add_insecure" required:"false"`
 	// if true, Packer will not call vagrant package to
 	// package your base box into its own standalone .box file.
-	SkipPackage       bool     `mapstructure:"skip_package" required:"false"`
-	OutputVagrantfile string   `mapstructure:"output_vagrantfile"`
-	PackageInclude    []string `mapstructure:"package_include"`
+	SkipPackage       bool   `mapstructure:"skip_package" required:"false"`
+	OutputVagrantfile string `mapstructure:"output_vagrantfile"`
+	// Equivalent to setting the
+	// [`--include`](https://www.vagrantup.com/docs/cli/package.html#include-x-y-z) option
+	// in `vagrant package`; defaults to unset
+	PackageInclude []string `mapstructure:"package_include"`
 
 	ctx interpolate.Context
 }
@@ -192,7 +195,7 @@ func (b *Builder) Prepare(raws ...interface{}) ([]string, []string, error) {
 		}
 		if strings.HasSuffix(b.config.SourceBox, ".box") {
 			if _, err := os.Stat(b.config.SourceBox); err != nil {
-				packer.MultiErrorAppend(errs,
+				errs = packer.MultiErrorAppend(errs,
 					fmt.Errorf("Source box '%s' needs to exist at time of config validation! %v", b.config.SourceBox, err))
 			}
 		}
@@ -201,11 +204,22 @@ func (b *Builder) Prepare(raws ...interface{}) ([]string, []string, error) {
 	if b.config.OutputVagrantfile != "" {
 		b.config.OutputVagrantfile, err = filepath.Abs(b.config.OutputVagrantfile)
 		if err != nil {
-			packer.MultiErrorAppend(errs,
+			errs = packer.MultiErrorAppend(errs,
 				fmt.Errorf("unable to determine absolute path for output vagrantfile: %s", err))
 		}
 	}
 
+	if len(b.config.PackageInclude) > 0 {
+		for i, rawFile := range b.config.PackageInclude {
+			inclFile, err := filepath.Abs(rawFile)
+			if err != nil {
+				errs = packer.MultiErrorAppend(errs,
+					fmt.Errorf("unable to determine absolute path for file to be included: %s", rawFile))
+			}
+			b.config.PackageInclude[i] = inclFile
+		}
+	}
+
 	if b.config.TeardownMethod == "" {
 		// If we're using a box that's already opened on the system, don't
 		// automatically destroy it. If we open the box ourselves, then go ahead
diff --git a/website/pages/partials/builder/vagrant/Config-not-required.mdx b/website/pages/partials/builder/vagrant/Config-not-required.mdx
index 783b45943..c310345fd 100644
--- a/website/pages/partials/builder/vagrant/Config-not-required.mdx
+++ b/website/pages/partials/builder/vagrant/Config-not-required.mdx
@@ -83,4 +83,7 @@
     package your base box into its own standalone .box file.
     
 -   `output_vagrantfile` (string) - Output Vagrantfile
--   `package_include` ([]string) - Package Include
\ No newline at end of file
+-   `package_include` ([]string) - Equivalent to setting the
+    [`--include`](https://www.vagrantup.com/docs/cli/package.html#include-x-y-z) option
+    in `vagrant package`; defaults to unset
+    
\ No newline at end of file