diff --git a/README.md b/README.md
index ca7dbd4..79046e0 100644
--- a/README.md
+++ b/README.md
@@ -204,8 +204,11 @@ workspace.
                             setups. Defaults to `true`
   -s, --seed-filepaths=<seedFilepaths>
                           A text file containing a newline separated list of
-                            filepaths, each of these filepaths will be read and
-                            used as a seed for all targets.
+                            filepaths. Each file in this list will be read and
+                            its content will be used as a SHA256 seed when
+                            determining affected targets in the build graph.
+                            Invalidating any of these files will effectively
+                            mark all targets as affected.
       -so, --bazelStartupOptions=<bazelStartupOptions>
                           Additional space separated Bazel client startup
                             options used when invoking Bazel
diff --git a/cli/src/main/kotlin/com/bazel_diff/cli/GenerateHashesCommand.kt b/cli/src/main/kotlin/com/bazel_diff/cli/GenerateHashesCommand.kt
index 9b87aa1..05c2500 100644
--- a/cli/src/main/kotlin/com/bazel_diff/cli/GenerateHashesCommand.kt
+++ b/cli/src/main/kotlin/com/bazel_diff/cli/GenerateHashesCommand.kt
@@ -139,7 +139,7 @@ class GenerateHashesCommand : Callable<Int> {
       names = ["-s", "--seed-filepaths"],
       description =
           [
-              "A text file containing a newline separated list of filepaths, each of these filepaths will be read and used as a seed for all targets."])
+              "A text file containing a newline separated list of filepaths. Each file in this list will be read and its content will be used as a SHA256 seed when determining affected targets in the build graph. Invalidating any of these files will effectively mark all targets as affected."])
   var seedFilepaths: File? = null
 
   @CommandLine.Parameters(