diff --git a/slices/libtheora0.yaml b/slices/libtheora0.yaml
new file mode 100644
index 00000000..4bf066e1
--- /dev/null
+++ b/slices/libtheora0.yaml
@@ -0,0 +1,19 @@
+package: libtheora0
+
+essential:
+  - libtheora0_copyright
+
+slices:
+  libs:
+    essential:
+      - libc6_libs
+      - libcairo2_libs
+      - libogg0_libs
+    contents:
+      /usr/lib/*-linux-*/libtheora.so.0*:
+      /usr/lib/*-linux-*/libtheoradec.so.1*:
+      /usr/lib/*-linux-*/libtheoraenc.so.1*:
+
+  copyright:
+    contents:
+      /usr/share/doc/libtheora0/copyright:
diff --git a/slices/libx11-xcb1.yaml b/slices/libx11-xcb1.yaml
new file mode 100644
index 00000000..2bc188ba
--- /dev/null
+++ b/slices/libx11-xcb1.yaml
@@ -0,0 +1,15 @@
+package: libx11-xcb1
+
+essential:
+  - libx11-xcb1_copyright
+
+slices:
+  libs:
+    essential:
+      - libx11-6_libs
+    contents:
+      /usr/lib/*-linux-*/libX11-xcb.so.1*:
+
+  copyright:
+    contents:
+      /usr/share/doc/libx11-xcb1/copyright: