diff --git a/diff_cover/command_runner.py b/diff_cover/command_runner.py
index 2bad10c8..fb1c4910 100644
--- a/diff_cover/command_runner.py
+++ b/diff_cover/command_runner.py
@@ -51,8 +51,13 @@ def run_command_for_code(command):
     """
     Returns command's exit code.
     """
-    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-    process.communicate()
+    try:
+        process = subprocess.Popen(
+            command, stdout=subprocess.PIPE, stderr=subprocess.PIPE
+        )
+        process.communicate()
+    except FileNotFoundError:
+        return 1
     return process.returncode