diff --git a/.changeset/new-peas-fry.md b/.changeset/new-peas-fry.md
new file mode 100644
index 0000000..c020488
--- /dev/null
+++ b/.changeset/new-peas-fry.md
@@ -0,0 +1,5 @@
+---
+'eslint-import-resolver-typescript': patch
+---
+
+fix: include mapper with no files and force non-dynamic projects to use absolute paths
diff --git a/src/index.ts b/src/index.ts
index c5a8822..46ba89f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -430,7 +430,9 @@ function initMappers(options: InternalResolverOptions) {
   // Turn glob patterns into paths
   const projectPaths = [
     ...new Set([
-      ...configPaths.filter(path => !isDynamicPattern(path)),
+      ...configPaths
+        .filter(p => !isDynamicPattern(p))
+        .map(p => path.resolve(process.cwd(), p)),
       ...globSync(
         configPaths.filter(path => isDynamicPattern(path)),
         {
@@ -504,11 +506,6 @@ function initMappers(options: InternalResolverOptions) {
                 : []),
             ]
 
-      if (files.length === 0) {
-        // eslint-disable-next-line unicorn/no-useless-undefined
-        return undefined
-      }
-
       return {
         path: toNativePathSeparator(tsconfigResult.path),
         files: new Set(files.map(toNativePathSeparator)),