diff --git a/brownie/project/compiler/solidity.py b/brownie/project/compiler/solidity.py
index ebf9d6a3d..2146da81c 100644
--- a/brownie/project/compiler/solidity.py
+++ b/brownie/project/compiler/solidity.py
@@ -90,11 +90,13 @@ def install_solc(*versions: str) -> None:
         solcx.install_solc(str(version), show_progress=True)
 
 
-def get_abi(contract_source: str) -> Dict:
+def get_abi(contract_source: str, allow_paths: Optional[str] = None) -> Dict:
     """Given a contract source, returns a dict of {name: abi}"""
     version = find_best_solc_version({"<stdin>": contract_source})
     set_solc_version(version)
-    compiled = solcx.compile_source(contract_source, allow_empty=True, output_values=["abi"])
+    compiled = solcx.compile_source(
+        contract_source, allow_empty=True, allow_paths=allow_paths, output_values=["abi"]
+    )
     return {k.rsplit(":")[-1]: v["abi"] for k, v in compiled.items()}
 
 
diff --git a/brownie/project/main.py b/brownie/project/main.py
index 794a06ddd..f521370c6 100644
--- a/brownie/project/main.py
+++ b/brownie/project/main.py
@@ -272,29 +272,38 @@ def _compile_interfaces(self, compiled_hashes: Dict) -> None:
             return
 
         print("Generating interface ABIs...")
-        for name in changed:
-            print(f" - {name}...")
-            path_str = self._sources.get_source_path(name)
-            source = self._sources.get(path_str)
-            path = Path(path_str)
-
-            if path.suffix == ".json":
-                abi = json.loads(source)
-            elif path.suffix == ".vy":
-                try:
-                    abi = compiler.vyper.get_abi(source, name)[name]
-                except Exception:
-                    # vyper interfaces do not convert to ABIs
-                    # https://github.com/vyperlang/vyper/issues/1944
-                    continue
-            else:
-                abi = compiler.solidity.get_abi(source)[name]
-            data = {"abi": abi, "contractName": name, "type": "interface", "sha1": new_hashes[name]}
+        cwd = os.getcwd()
+        try:
+            os.chdir(self._path.joinpath("interfaces"))
+            for name in changed:
+                print(f" - {name}...")
+                path_str = self._sources.get_source_path(name)
+                source = self._sources.get(path_str)
+                path = Path(path_str)
+
+                if path.suffix == ".json":
+                    abi = json.loads(source)
+                elif path.suffix == ".vy":
+                    try:
+                        abi = compiler.vyper.get_abi(source, name)[name]
+                    except Exception:
+                        # vyper interfaces do not convert to ABIs
+                        # https://github.com/vyperlang/vyper/issues/1944
+                        continue
+                else:
+                    abi = compiler.solidity.get_abi(source, allow_paths=self._path.as_posix())[name]
+                data = {
+                    "abi": abi,
+                    "contractName": name,
+                    "type": "interface",
+                    "sha1": new_hashes[name],
+                }
 
-            if self._path is not None:
                 with self._path.joinpath(f"build/interfaces/{name}.json").open("w") as fp:
                     json.dump(data, fp, sort_keys=True, indent=2, default=sorted)
-            self._build._add(data)
+                self._build._add(data)
+        finally:
+            os.chdir(cwd)
 
     def _load_deployments(self) -> None:
         if CONFIG.network_type != "live":