diff --git a/src/source/building.md b/src/source/building.md
index b463171..e2de012 100644
--- a/src/source/building.md
+++ b/src/source/building.md
@@ -105,14 +105,19 @@
 
     $ export USE_CCACHE=1
     $ export CCACHE_DIR=/<path_of_your_choice>/.ccache
-    $ prebuilt/linux-x86/ccache/ccache -M 20G
+    $ prebuilts/misc/linux-x86/ccache/ccache -M 50G
+
+The suggested cache size is 50-100G.
 
 You can watch ccache being used by doing the following:
 
-    $ watch -n1 -d prebuilt/linux-x86/ccache/ccache -s
+    $ watch -n1 -d prebuilts/misc/linux-x86/ccache/ccache -s
 
 On OSX, you should replace `linux-x86` with `darwin-x86`.
 
+When using Ice Cream Sandwich (4.0.x) or older, you should replace
+`prebuilts/misc` with `prebuilt`.
+
 # Troubleshooting Common Build Errors #
 
 ## Wrong Java Version ##
diff --git a/src/source/initializing.md b/src/source/initializing.md
index 5b6bcb4..ac50857 100644
--- a/src/source/initializing.md
+++ b/src/source/initializing.md
@@ -185,7 +185,12 @@
 
 The suggested cache size is 50-100GB.
 You will need to run the following command once you have downloaded
-the source code.
+the source code:
+
+    prebuilts/misc/linux-x86/ccache/ccache -M 50G
+
+When building Ice Cream Sandwich (4.0.x) or older, ccache is in
+a different location:
 
     prebuilt/linux-x86/ccache/ccache -M 50G