diff --git a/src/include/pv-internal.h b/src/include/pv-internal.h
index edb9a05..9096403 100644
--- a/src/include/pv-internal.h
+++ b/src/include/pv-internal.h
@@ -644,7 +644,6 @@ void pv_reset_calc(pvtransfercalc_t);
 void pv_reset_transfer(pvtransferstate_t);
 void pv_reset_flags(pvtransientflags_t);
 void pv_reset_display(pvdisplay_t);
-void pv_reset_watchfd(pvwatchfd_t);
 void pv_freecontents_display(pvdisplay_t);
 void pv_freecontents_transfer(pvtransferstate_t);
 void pv_freecontents_calc(pvtransfercalc_t);
@@ -667,7 +666,6 @@ void pv_sig_nopause(void);
 
 bool pv_remote_check(pvstate_t);
 
-int pv_watchfd_info(pvstate_t, pvwatchfd_t, bool);
 bool pv_watchfd_changed(pvwatchfd_t);
 off_t pv_watchfd_position(pvwatchfd_t);
 int pv_watchpid_scanfds(pvstate_t, pid_t, int, int *, pvwatchfd_t *);
diff --git a/src/pv/watchpid.c b/src/pv/watchpid.c
index cbc1d2b..6182b99 100644
--- a/src/pv/watchpid.c
+++ b/src/pv/watchpid.c
@@ -109,7 +109,7 @@ static bool filesize(pvwatchfd_t info)
  * it's not readable or not a regular file, no error is reported with
  * pv_error() when returning the error code.
  */
-int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
+static int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 {
 	struct vnode_fdinfowithpath vnodeInfo = { };
 
@@ -182,7 +182,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
  * it's not readable or not a regular file, no error is reported with
  * pv_error() when returning the error code.
  */
-int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
+static int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 {
 	if (NULL == state)
 		return -1;
@@ -472,7 +472,7 @@ static bool extend_info_array(int *array_length_ptr, pvwatchfd_t *info_array_ptr
 /*
  * Reset calculated values in the given watchfd info structure.
  */
-void pv_reset_watchfd(pvwatchfd_t info)
+static void pv_reset_watchfd(pvwatchfd_t info)
 {
 	if (NULL == info)
 		return;