diff --git a/.config/nvim/coc-settings.json b/.config/nvim/coc-settings.json
index 3398794..74b8ba8 100644
--- a/.config/nvim/coc-settings.json
+++ b/.config/nvim/coc-settings.json
@@ -22,6 +22,22 @@
       "args": ["start"],
       "filetypes": ["sh"],
       "ignoredRootPaths": ["~"]
+    },
+    "ccls": {
+      "command": "ccls",
+      "filetypes": ["c", "cpp", "objc", "objcpp"],
+      "rootPatterns": [
+        ".ccls",
+        "compile_commands.json",
+        ".vim/",
+        ".git/",
+        ".hg/"
+      ],
+      "initializationOptions": {
+        "cache": {
+          "directory": "/tmp/ccls"
+        }
+      }
     }
   },
   "solargraph.commandPath": "~/.gem/ruby/2.6.0/bin/solargraph",