diff --git a/docs/source/markdown/podman-system-df.1.md b/docs/source/markdown/podman-system-df.1.md
index 4e414ce14e..8b8e779841 100644
--- a/docs/source/markdown/podman-system-df.1.md
+++ b/docs/source/markdown/podman-system-df.1.md
@@ -14,6 +14,19 @@ Show podman disk usage
 
 Pretty-print images using a Go template or JSON. This flag is not allowed in combination with **--verbose**
 
+Valid placeholders for the Go template are listed below:
+
+| **Placeholder**           | **Description**                                  |
+| ------------------------- | ------------------------------------------------ |
+| .Active                   | Indicates whether volume is in use               |
+| .RawReclaimable           | Raw reclaimable size of each Type                |
+| .RawSize                  | Raw size of each type                            |
+| .Reclaimable              | Reclaimable size or each type (human-readable)   |
+| .Size                     | Size of each type (human-readable)               |
+| .Total                    | Total items for each type                        |
+| .Type                     | Type of data                                     |
+
+
 #### **--verbose**, **-v**
 Show detailed information on space usage