diff --git a/pscp.c b/pscp.c
index 192bc138..08e37ceb 100644
--- a/pscp.c
+++ b/pscp.c
@@ -2299,7 +2299,7 @@ int psftp_main(CmdlineArgList *arglist)
                 verbose = true;
         } else if (strcmp(argstr, "-pgpfp") == 0) {
             pgp_fingerprints();
-            return 1;
+            return 0;
         } else if (strcmp(argstr, "-r") == 0) {
             recursive = true;
         } else if (strcmp(argstr, "-p") == 0) {
diff --git a/psftp.c b/psftp.c
index 78d6d139..5afd5e54 100644
--- a/psftp.c
+++ b/psftp.c
@@ -2839,7 +2839,7 @@ int psftp_main(CmdlineArgList *arglist)
             cleanup_exit(0);
         } else if (strcmp(argstr, "-pgpfp") == 0) {
             pgp_fingerprints();
-            return 1;
+            return 0;
         } else if (strcmp(argstr, "-V") == 0 ||
                    strcmp(argstr, "--version") == 0) {
             version();
diff --git a/unix/main-gtk-simple.c b/unix/main-gtk-simple.c
index 76487772..9b3c225e 100644
--- a/unix/main-gtk-simple.c
+++ b/unix/main-gtk-simple.c
@@ -529,7 +529,7 @@ bool do_cmdline(int argc, char **argv, bool do_everything, Conf *conf)
 
         } else if (!strcmp(p, "-pgpfp")) {
             pgp_fingerprints();
-            exit(1);
+            exit(0);
 
         } else if (has_ca_config_box &&
                    (!strcmp(p, "-host-ca") || !strcmp(p, "--host-ca") ||
diff --git a/unix/plink.c b/unix/plink.c
index f2b6b072..36bf29d1 100644
--- a/unix/plink.c
+++ b/unix/plink.c
@@ -747,7 +747,7 @@ int main(int argc, char **argv)
             exit(0);
         } else if (!strcmp(p, "-pgpfp")) {
             pgp_fingerprints();
-            exit(1);
+            exit(0);
         } else if (!strcmp(p, "-o")) {
             if (argc <= 1) {
                 fprintf(stderr,
diff --git a/windows/pageant.c b/windows/pageant.c
index f30d9cdc..eb858a3b 100644
--- a/windows/pageant.c
+++ b/windows/pageant.c
@@ -1616,7 +1616,7 @@ int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
             clkey->add_encrypted = add_keys_encrypted;
         } else if (match_opt("-pgpfp")) {
             pgp_fingerprints_msgbox(NULL);
-            return 1;
+            return 0;
         } else if (match_opt("-restrict-acl", "-restrict_acl",
                              "-restrictacl")) {
             restrict_process_acl();
diff --git a/windows/plink.c b/windows/plink.c
index 95025281..46773815 100644
--- a/windows/plink.c
+++ b/windows/plink.c
@@ -352,7 +352,7 @@ int main(int argc, char **argv)
             exit(0);
         } else if (!strcmp(p, "-pgpfp")) {
             pgp_fingerprints();
-            exit(1);
+            exit(0);
         } else if (!strcmp(p, "-shareexists")) {
             just_test_share_exists = true;
         } else if (!strcmp(p, "-sanitise-stdout") ||
diff --git a/windows/putty.c b/windows/putty.c
index eb1386e8..3a320e19 100644
--- a/windows/putty.c
+++ b/windows/putty.c
@@ -87,7 +87,7 @@ void gui_term_process_cmdline(Conf *conf, char *cmdline)
                 exit(0);
             } else if (!strcmp(p, "-pgpfp")) {
                 pgp_fingerprints_msgbox(NULL);
-                exit(1);
+                exit(0);
             } else if (has_ca_config_box &&
                        (!strcmp(p, "-host-ca") || !strcmp(p, "--host-ca") ||
                         !strcmp(p, "-host_ca") || !strcmp(p, "--host_ca"))) {
diff --git a/windows/puttygen.c b/windows/puttygen.c
index 643e1113..0e4f9a78 100644
--- a/windows/puttygen.c
+++ b/windows/puttygen.c
@@ -2436,7 +2436,7 @@ int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
             }
         } else if (match_opt("-pgpfp")) {
             pgp_fingerprints_msgbox(NULL);
-            return 1;
+            return 0;
         } else if (match_opt("-restrict-acl", "-restrict_acl",
                              "-restrictacl")) {
             restrict_process_acl();