diff --git a/agent/gpg-agent.c b/agent/gpg-agent.c
index 5599dfd1f..0443377e8 100644
--- a/agent/gpg-agent.c
+++ b/agent/gpg-agent.c
@@ -2016,11 +2016,17 @@ static void
 reread_configuration (void)
 {
   gpgrt_argparse_t pargs;
+  char *twopart;
   int dummy;
 
   if (!config_filename)
     return; /* No config file. */
 
+  twopart = strconcat (GPG_AGENT_NAME EXTSEP_S "conf" PATHSEP_S,
+                       config_filename, NULL);
+  if (!twopart)
+    return;  /* Out of core.  */
+
   parse_rereadable_options (NULL, 1); /* Start from the default values. */
 
   memset (&pargs, 0, sizeof pargs);
@@ -2029,7 +2035,7 @@ reread_configuration (void)
   pargs.flags = (ARGPARSE_FLAG_KEEP
                  |ARGPARSE_FLAG_SYS
                  |ARGPARSE_FLAG_USER);
-  while (gpgrt_argparser (&pargs, opts, GPG_AGENT_NAME EXTSEP_S "conf") )
+  while (gpgrt_argparser (&pargs, opts, twopart) )
     {
       if (pargs.r_opt == ARGPARSE_CONFFILE)
         {
@@ -2042,7 +2048,7 @@ reread_configuration (void)
         parse_rereadable_options (&pargs, 1);
     }
   gpgrt_argparse (NULL, &pargs, NULL);  /* Release internal state.  */
-
+  xfree (twopart);
   finalize_rereadable_options ();
   set_debug ();
 }
diff --git a/dirmngr/dirmngr.c b/dirmngr/dirmngr.c
index 875a42442..8424c4aca 100644
--- a/dirmngr/dirmngr.c
+++ b/dirmngr/dirmngr.c
@@ -1812,11 +1812,17 @@ static void
 reread_configuration (void)
 {
   gpgrt_argparse_t pargs;
+  char *twopart;
   int dummy;
 
   if (!opt.config_filename)
     return; /* No config file. */
 
+  twopart = strconcat (DIRMNGR_NAME EXTSEP_S "conf" PATHSEP_S,
+                       opt.config_filename, NULL);
+  if (!twopart)
+    return;  /* Out of core.  */
+
   parse_rereadable_options (NULL, 1); /* Start from the default values. */
 
   memset (&pargs, 0, sizeof pargs);
@@ -1825,7 +1831,7 @@ reread_configuration (void)
   pargs.flags = (ARGPARSE_FLAG_KEEP
                  |ARGPARSE_FLAG_SYS
                  |ARGPARSE_FLAG_USER);
-  while (gpgrt_argparser (&pargs, opts, DIRMNGR_NAME EXTSEP_S "conf") )
+  while (gpgrt_argparser (&pargs, opts, twopart))
     {
       if (pargs.r_opt == ARGPARSE_CONFFILE)
         {
@@ -1838,7 +1844,7 @@ reread_configuration (void)
         parse_rereadable_options (&pargs, 1);
     }
   gpgrt_argparse (NULL, &pargs, NULL);  /* Release internal state.  */
-
+  xfree (twopart);
   post_option_parsing ();
 }