diff --git a/completions/bash/feedgnuplot b/completions/bash/feedgnuplot
index 81460b1..1cb7e3b 100644
--- a/completions/bash/feedgnuplot
+++ b/completions/bash/feedgnuplot
@@ -21,6 +21,7 @@ complete -W               \
     --set                 \
     --unset               \
     --equation            \
+    --image               \
     --geometry            \
     --hardcopy            \
     --help                \
diff --git a/completions/zsh/_feedgnuplot b/completions/zsh/_feedgnuplot
index f29c20f..8826e94 100644
--- a/completions/zsh/_feedgnuplot
+++ b/completions/zsh/_feedgnuplot
@@ -33,6 +33,7 @@ _arguments -S
     '*--set[Additional 'set' gnuplot commands]:set-option'                        \
     '*--unset[Additional 'unset' gnuplot commands]:unset-option'                  \
     '*--equation[Raw symbolic equation]:equation'                                 \
+    '--image[Image file to render beneath the data]:image'                        \
     '--square[Plot data with square aspect ratio]'                                \
     '--square_xy[For 3D plots, set square aspect ratio for ONLY the x,y axes]'    \
     '--hardcopy[Plot to a file]:filename'                                         \