diff --git a/checkov/common/util/dockerfile.py b/checkov/common/util/dockerfile.py
index 35fa12e471..77e50f41f1 100644
--- a/checkov/common/util/dockerfile.py
+++ b/checkov/common/util/dockerfile.py
@@ -1,6 +1,6 @@
 import re
 
-DOCKERFILE_MASK = re.compile(r"^(?:.+\.)?[Dd]ockerfile(?:\..+)?$(?<!\.[Dd]ockerignore)")
+DOCKERFILE_MASK = re.compile(r"^(?:(?:.+\.)?[Dd]|.+D)ockerfile(?:\..+)?$(?<!\.[Dd]ockerignore)")
 
 
 def is_dockerfile(file: str) -> bool:
diff --git a/tests/dockerfile/test_utils.py b/tests/dockerfile/test_utils.py
index f4989b4b9b..5514442fed 100644
--- a/tests/dockerfile/test_utils.py
+++ b/tests/dockerfile/test_utils.py
@@ -12,6 +12,9 @@
     "Dockerfile.Product1",
     "dev.Dockerfile",
     "team1.product.dockerfile",
+    "AdtDockerfile",
+    "MyServiceDockerfile",
+    "AdtDockerfile.prod",
 ]
 INVALID_DOCKERFILE_NAMES = [
     "package.json",