1 files changed, 5 insertions, 4 deletions

diff --git a/include/usage.h b/include/usage.h
index d5e9d7d5d..f5025b70a 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -607,12 +607,13 @@
        "[-" USE_FEATURE_HUMAN_READABLE("hm") "k] [FILESYSTEM ...]"
 #define df_full_usage \
        "Print the filesystem space used and space available" \
-       "\n\nOptions:\n" \
         USE_FEATURE_HUMAN_READABLE( \
-       "\n      -h      Print sizes in human readable format (e.g., 1K 243M 2G )\n" \
-       "        -m      Print sizes in megabytes\n" \
-       "        -k      Print sizes in kilobytes(default)") \
+       "\n\nOptions control size display:" \
+       "\n      -h      Human readable (e.g. 1K 243M 2G)" \
+       "\n      -m      1024*1024 blocks" \
+       "\n      -k      1024 blocks") \
         SKIP_FEATURE_HUMAN_READABLE( \
+       "\n\nOptions:" \
        "\n      -k      Ignored")
 #define df_example_usage \
        "$ df\n" \