diff --git a/manual/appendix/config_file_options.tex b/manual/appendix/config_file_options.tex
index c4c1dfa223..65b024a924 100644
--- a/manual/appendix/config_file_options.tex
+++ b/manual/appendix/config_file_options.tex
@@ -141,7 +141,7 @@
     folder navigation & off, on, random & N/A\\
     gather runtime data & off, on       & N/A\\
     \opt{usb_charging_enable}{
-      usb charging  & on, off           & N/A\\
+      usb charging  & on, off, force    & N/A\\
     }
     skip length     & outro, track, 1s, 2s, 3s, 5s, 7s, 10s, 15s, 20s, 1min,
             90s, 2min, 3min, 5min, 10min, 15min & N/A\\
diff --git a/manual/configure_rockbox/system_options.tex b/manual/configure_rockbox/system_options.tex
index a5be25bb27..ac39db60b6 100644
--- a/manual/configure_rockbox/system_options.tex
+++ b/manual/configure_rockbox/system_options.tex
@@ -65,11 +65,13 @@
         is currently used in the \dap{}. The two supported battery types are
         ``Alkaline'' or ``NiMH''.}
 
-      \opt{h300,ipodnano2g}{
+      \opt{usb_charging_enable}{
       \item [Charge During USB Connection.] This option lets you control whether
         the \dap{} should charge during the USB connection and hence draw the
-        full 500~mA. Turning it \setting{Off} is recommended if the dap{} is
-        connected through an unpowered USB hub or a laptop port.
+        full 500~mA. Turning it \setting{Off} is recommended if the \dap{} is
+        connected through an unpowered USB hub or a laptop port. To use a USB
+        AC adapter, select \setting{Force} to instruct the \dap{} to also
+        charge when USB power is available but no connection is established.
       }
 
      \end{description}