diff --git a/glibc/Dockerfile b/Dockerfile.glibc
similarity index 100%
rename from glibc/Dockerfile
rename to Dockerfile.glibc
diff --git a/musl/Dockerfile b/Dockerfile.musl
similarity index 100%
rename from musl/Dockerfile
rename to Dockerfile.musl
diff --git a/README.md b/README.md
index f8f6248..b0e7a84 100644
--- a/README.md
+++ b/README.md
@@ -38,8 +38,8 @@ Available on [Quay](https://quay.io) as:
 
 ## Building
 
-- To build the `glibc`-based image: `$ docker build -t nginx:glibc -f glibc/Dockerfile .`
-- To build the `musl`-based image: `$ docker build -t nginx:musl -f musl/Dockerfile .`
+- To build the `glibc`-based image: `$ docker build -t nginx:glibc -f Dockerfile.glibc .`
+- To build the `musl`-based image: `$ docker build -t nginx:musl -f Dockerfile.musl .`
 
 
 ## Filesystem