diff --git a/config.md b/config.md
index aedcf142f..7158ba290 100644
--- a/config.md
+++ b/config.md
@@ -59,6 +59,7 @@ For Solaris, the mount entry corresponds to the 'fs' resource in the [zonecfg(1M
 
 * **`destination`** (string, REQUIRED) Destination of mount point: path inside container.
   This value MUST be an absolute path.
+  * Posix: the path and child directories MUST exist, a runtime MUST NOT create directories automatically to a mount point.
   * Windows: one mount destination MUST NOT be nested within another mount (e.g., c:\\foo and c:\\foo\\bar).
   * Solaris: corresponds to "dir" of the fs resource in [zonecfg(1M)][zonecfg.1m].
 * **`type`** (string, OPTIONAL) The type of the filesystem to be mounted.
@@ -69,7 +70,7 @@ For Solaris, the mount entry corresponds to the 'fs' resource in the [zonecfg(1M
   * Windows: a local directory on the filesystem of the container host. UNC paths and mapped drives are not supported.
   * Solaris: corresponds to "special" of the fs resource in [zonecfg(1M)][zonecfg.1m].
 * **`options`** (array of strings, OPTIONAL) Mount options of the filesystem to be used.
-  * Linux: supported options are listed in the [mount(8)][mount.8] man page. Note both [filesystem-independent][mount.8-filesystem-independent] and [filesystem-specific][mount.8-filesystem-specific] options are listed.
+  * Linux: supported options are listed in the [mount(8)][mount.8] man page. Note both [filesystem-independent][mount.8-filesystem-independent] and [filesystem-specific][mount.8-filesystem-specific] options are listed. In the case of bind mounts, this would be the file on the host.
   * Solaris: corresponds to "options" of the fs resource in [zonecfg(1M)][zonecfg.1m].
 
 ### Example (Linux)
diff --git a/specs-go/config.go b/specs-go/config.go
index b67c6b8f7..9f09de11e 100644
--- a/specs-go/config.go
+++ b/specs-go/config.go
@@ -112,12 +112,11 @@ type Platform struct {
 
 // Mount specifies a mount for a container.
 type Mount struct {
-	// Destination is the path where the mount will be placed relative to the container's root.  The path and child directories MUST exist, a runtime MUST NOT create directories automatically to a mount point.
+	// Destination is the absolute path where the mount will be placed in the container.
 	Destination string `json:"destination"`
 	// Type specifies the mount kind.
-	Type string `json:"type,omitempty"`
-	// Source specifies the source path of the mount.  In the case of bind mounts on
-	// Linux based systems this would be the file on the host.
+	Type string `json:"type,omitempty" platform:"linux,solaris"`
+	// Source specifies the source path of the mount.
 	Source string `json:"source,omitempty"`
 	// Options are fstab style mount options.
 	Options []string `json:"options,omitempty"`