diff --git a/languages.json b/languages.json
index 643ca1255..47fb4e2b9 100644
--- a/languages.json
+++ b/languages.json
@@ -22,6 +22,34 @@
     ],
     "multi_line": [],
     "quotes": []
+  },
+    "APL": {
+    "complexitychecks": [
+      ":For ",
+      ":If ",
+      ":Case ",
+      ":CaseList ",
+      ":While ",
+      ":Repeat ",
+      ":Else ",
+      "∨",
+      "∧",
+      "≠",
+      "~",
+      "¨",
+      "="
+    ],
+    "extensions": [
+      "apl",
+      "aplf",
+      "apln",
+      "aplc"
+    ],
+    "line_comment": [
+      "⍝"
+    ],
+    "multi_line": [],
+    "quotes": ["'"]
   },
   "ASP": {
     "complexitychecks": [