diff --git a/tests/fate/avfilter.mak b/tests/fate/avfilter.mak
index 872ebc7b9c..15c85958b2 100644
--- a/tests/fate/avfilter.mak
+++ b/tests/fate/avfilter.mak
@@ -11,6 +11,7 @@ FATE_LAVFI = fate-lavfi-alphaextract_rgb                                \
              fate-lavfi-fade                                            \
              fate-lavfi-field                                           \
              fate-lavfi-idet                                            \
+             fate-lavfi-il                                              \
              fate-lavfi-life                                            \
              fate-lavfi-null                                            \
              fate-lavfi-overlay                                         \
diff --git a/tests/lavfi-regression.sh b/tests/lavfi-regression.sh
index d9542e1584..704e61bb4f 100755
--- a/tests/lavfi-regression.sh
+++ b/tests/lavfi-regression.sh
@@ -106,6 +106,7 @@ do_lavfi_pixfmts(){
 # all these filters have exactly one input and exactly one output
 do_lavfi_pixfmts "field"               "field"   "bottom"
 do_lavfi_pixfmts "histeq"              "histeq"  "antibanding=strong"
+do_lavfi_pixfmts "il"                  "il"      "luma_mode=d:chroma_mode=d:alpha_mode=d"
 do_lavfi_pixfmts "kerndeint"           "kerndeint" "" "tinterlace=interleave_top,"
 do_lavfi_pixfmts "pixfmts_copy"        "copy"    ""
 do_lavfi_pixfmts "pixfmts_crop"        "crop"    "100:100:100:100"
diff --git a/tests/ref/lavfi/il b/tests/ref/lavfi/il
new file mode 100644
index 0000000000..d4a8142630
--- /dev/null
+++ b/tests/ref/lavfi/il
@@ -0,0 +1,109 @@
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