2 files changed, 2 insertions, 2 deletions
diff --git a/packages/sol-resolver/src/resolvers/npm_resolver.ts b/packages/sol-resolver/src/resolvers/npm_resolver.ts
index 9f8617145..a2df0dcad 100644
--- a/packages/sol-resolver/src/resolvers/npm_resolver.ts
+++ b/packages/sol-resolver/src/resolvers/npm_resolver.ts
@@ -19,7 +19,7 @@ export class NPMResolver extends Resolver {
             const ROOT_PATH = '/';
             while (currentPath !== ROOT_PATH) {
                 const lookupPath = path.join(currentPath, 'node_modules', packageName, pathWithinPackage);
-                if (fs.existsSync(lookupPath)) {
+                if (fs.existsSync(lookupPath) && fs.lstatSync(lookupPath).isFile()) {
                     const fileContent = fs.readFileSync(lookupPath).toString();
                     return {
                         source: fileContent,
diff --git a/packages/sol-resolver/src/resolvers/relative_fs_resolver.ts b/packages/sol-resolver/src/resolvers/relative_fs_resolver.ts
index 77103b8c1..ed96040d3 100644
--- a/packages/sol-resolver/src/resolvers/relative_fs_resolver.ts
+++ b/packages/sol-resolver/src/resolvers/relative_fs_resolver.ts
@@ -14,7 +14,7 @@ export class RelativeFSResolver extends Resolver {
     // tslint:disable-next-line:prefer-function-over-method
     public resolveIfExists(importPath: string): ContractSource | undefined {
         const filePath = path.join(this._contractsDir, importPath);
-        if (fs.existsSync(filePath)) {
+        if (fs.existsSync(filePath) && !fs.lstatSync(filePath).isDirectory()) {
             const fileContent = fs.readFileSync(filePath).toString();
             return {
                 source: fileContent,