1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/df.c b/coreutils/df.c
index 6fe8e2fba..ad6a4f370 100644
--- a/coreutils/df.c
+++ b/coreutils/df.c
@@ -29,7 +29,7 @@ static unsigned long kscale(unsigned long b, unsigned long bs)
 }
 #endif
 
-int df_main(int argc, char **argv);
+int df_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int df_main(int argc, char **argv)
 {
         unsigned long blocks_used;