diff --git a/src/dotenv/cli.py b/src/dotenv/cli.py
index 65ead461..7c09a5ff 100644
--- a/src/dotenv/cli.py
+++ b/src/dotenv/cli.py
@@ -1,6 +1,7 @@
 import json
 import os
 import shlex
+import shutil
 import sys
 from contextlib import contextmanager
 from subprocess import Popen
@@ -189,6 +190,11 @@ def run_command(command: List[str], env: Dict[str, str]) -> int:
     cmd_env = os.environ.copy()
     cmd_env.update(env)
 
+    # Resolve path in a consistent way
+    app = shutil.which(command[0])
+    if app is not None:
+        command = (app,) + command[1:]
+
     p = Popen(command,
               universal_newlines=True,
               bufsize=0,