1 files changed, 1 insertions, 0 deletions

diff --git a/networking/ipcalc.c b/networking/ipcalc.c
index 685f0e315..63ce99ffe 100644
--- a/networking/ipcalc.c
+++ b/networking/ipcalc.c
@@ -76,6 +76,7 @@ int get_prefix(unsigned long netmask);
         };
 #endif
 
+int ipcalc_main(int argc, char **argv);
 int ipcalc_main(int argc, char **argv)
 {
         unsigned opt;