diff --git a/tools/configure b/tools/configure
index 8de248b86b..bc1e08ccb6 100755
--- a/tools/configure
+++ b/tools/configure
@@ -1816,6 +1816,8 @@ fi
   # modelname: short model name used all over to identify this target
   # memory:    number of megabytes of RAM this target has. If the amount can
   #            be selected by the size prompt, let memory be unset here
+  #            Note that for hsoted/application builds, this is the size
+  #            reserved for the audio buffer, not the total RAM size.
   # target:    -Ddefine passed to the build commands to make the correct
   #            config-*.h file get included etc
   # tool:      the tool that takes a plain binary and converts that into a