diff --git a/packages/hardhat/deploy/99_generateTsAbis.ts b/packages/hardhat/deploy/99_generateTsAbis.ts
index 9bae1eb89..765e6a930 100644
--- a/packages/hardhat/deploy/99_generateTsAbis.ts
+++ b/packages/hardhat/deploy/99_generateTsAbis.ts
@@ -60,7 +60,7 @@ function getInheritedFunctions(sources: Record<string, any>, contractName: strin
   const inheritedFunctions = {} as Record<string, any>;
 
   for (const sourceContractName of actualSources) {
-    const sourcePath = Object.keys(sources).find(key => key.includes(sourceContractName));
+    const sourcePath = Object.keys(sources).find(key => key.includes(`/${sourceContractName}`));
     if (sourcePath) {
       const sourceName = sourcePath?.split("/").pop()?.split(".sol")[0];
       const { abi } = JSON.parse(fs.readFileSync(`${ARTIFACTS_DIR}/${sourcePath}/${sourceName}.json`).toString());