diff --git a/config.nims b/config.nims
new file mode 100644
index 0000000..d62171e
--- /dev/null
+++ b/config.nims
@@ -0,0 +1,14 @@
+import os
+
+switch("backend", "js")
+switch("outdir", "out")
+switch("sourceMap", "on")
+switch("path", "src")
+switch("define", "nimsuggest")
+switch("define", "nodejs")
+switch("define", "js")
+
+# Add nim's installation path to the search paths so that nimsuggest can be found
+let nimInstallationDir = absolutePath(splitPath(getCurrentCompilerExe()).head / "..")
+if dirExists(nimInstallationDir / "nimsuggest"):
+    switch("path", nimInstallationDir)
diff --git a/nim.cfg b/nim.cfg
deleted file mode 100644
index 57e4444..0000000
--- a/nim.cfg
+++ /dev/null
@@ -1,9 +0,0 @@
---backend:js
---outdir:out
---sourceMap
-
---path:"src/"
-
-define:nimsuggest
-define:nodejs
-define:js
\ No newline at end of file
diff --git a/package.json b/package.json
index fc59bc0..700c6f6 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "nimvscode",
     "displayName": "Nim",
     "description": "Nim language support for Visual Studio Code written in Nim",
-    "version": "0.1.26",
+    "version": "0.1.27",
     "publisher": "nimsaem",
     "author": {
         "name": "Saem"
@@ -202,15 +202,19 @@
                 "nim.projectMapping": {
                     "type": "array",
                     "default": [],
-                    "description": "For non project mode list of per file project mapping using regex, for example ```{\"fileRegex\": \"(.*).inim\", \"projectFile\": \"$1.nim\"}```",
-                    "properties": {
-                        "fileRegex": {
-                            "type": "string",
-                            "description": "Source file regex"
-                        },
-                        "projectFile": {
-                            "type": "string",
-                            "description": "Project file path"
+                    "description": "For non project mode list of per file project mapping using regex, for example ```[{\"fileRegex\": \"(.*).inim\", \"projectFile\": \"$1.nim\"}]```",
+                    "items": {
+                        "type": "object",
+                        "title": "mapping",
+                        "properties": {
+                            "fileRegex": {
+                                "type": "string",
+                                "description": "Source file regex"
+                            },
+                            "projectFile": {
+                                "type": "string",
+                                "description": "Project file path"
+                            }
                         }
                     },
                     "scope": "resource"