diff --git a/Dockerfile b/Dockerfile
index 89fc927..3a201ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM ubuntu:jammy
 
-COPY jammy /etc/apt/sources.list.d
+COPY jammy-ports.sources /etc/apt/sources.list.d/jammy-ports.sources
 COPY toolchains /opt/toolchains
 
 RUN dpkg --add-architecture i386
diff --git a/Dockerfile.plucky b/Dockerfile.plucky
index 454ff06..0e77767 100644
--- a/Dockerfile.plucky
+++ b/Dockerfile.plucky
@@ -1,6 +1,6 @@
 FROM ubuntu:plucky
 COPY toolchains /opt/toolchains
-COPY plucky /etc/apt/sources.list.d
+COPY plucky-ports.sources /etc/apt/sources.list.d/plucky-ports.sources
 RUN dpkg --add-architecture i386
 RUN dpkg --add-architecture riscv64
 RUN dpkg --add-architecture arm64
diff --git a/jammy/arm64.sources b/jammy/arm64.sources
deleted file mode 100644
index af77c78..0000000
--- a/jammy/arm64.sources
+++ /dev/null
@@ -1,6 +0,0 @@
-Types: deb
-URIs: http://ports.ubuntu.com/ubuntu-ports/
-Suites: jammy jammy-updates jammy-backports
-Components: main universe restricted multiverse
-Architectures: arm64
-Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
\ No newline at end of file
diff --git a/jammy/armhf.sources b/jammy/armhf.sources
deleted file mode 100644
index a1b17a1..0000000
--- a/jammy/armhf.sources
+++ /dev/null
@@ -1,6 +0,0 @@
-Types: deb
-URIs: http://ports.ubuntu.com/ubuntu-ports/
-Suites: jammy jammy-updates jammy-backports
-Components: main universe restricted multiverse
-Architectures: armhf
-Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
\ No newline at end of file
diff --git a/jammy/riscv64.sources b/jammy/riscv64.sources
deleted file mode 100644
index e87e5a8..0000000
--- a/jammy/riscv64.sources
+++ /dev/null
@@ -1,6 +0,0 @@
-Types: deb
-URIs: http://ports.ubuntu.com/ubuntu-ports/
-Suites: jammy jammy-updates jammy-backports
-Components: main universe restricted multiverse
-Architectures: riscv64
-Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
\ No newline at end of file
diff --git a/plucky/arm64.sources b/plucky/arm64.sources
deleted file mode 100644
index fbc1af6..0000000
--- a/plucky/arm64.sources
+++ /dev/null
@@ -1,6 +0,0 @@
-Types: deb
-URIs: http://ports.ubuntu.com/ubuntu-ports/
-Suites: plucky plucky-updates plucky-backports
-Components: main universe restricted multiverse
-Architectures: arm64
-Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
\ No newline at end of file
diff --git a/plucky/armhf.sources b/plucky/armhf.sources
deleted file mode 100644
index 31f2b40..0000000
--- a/plucky/armhf.sources
+++ /dev/null
@@ -1,6 +0,0 @@
-Types: deb
-URIs: http://ports.ubuntu.com/ubuntu-ports/
-Suites: plucky plucky-updates plucky-backports
-Components: main universe restricted multiverse
-Architectures: armhf
-Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
\ No newline at end of file
diff --git a/plucky/riscv64.sources b/plucky/riscv64.sources
deleted file mode 100644
index 2f67fa8..0000000
--- a/plucky/riscv64.sources
+++ /dev/null
@@ -1,6 +0,0 @@
-Types: deb
-URIs: http://ports.ubuntu.com/ubuntu-ports/
-Suites: plucky plucky-updates plucky-backports
-Components: main universe restricted multiverse
-Architectures: riscv64
-Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
\ No newline at end of file