diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index d81157ccaf..b929877643 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -5115,7 +5115,7 @@ typedef enum {
 int virDomainAuthorizedSSHKeysSet(virDomainPtr domain,
                                   const char *user,
                                   const char **keys,
-                                  int nkeys,
+                                  unsigned int nkeys,
                                   unsigned int flags);
 
 #endif /* LIBVIRT_DOMAIN_H */
diff --git a/src/driver-hypervisor.h b/src/driver-hypervisor.h
index 5a5ea95c51..9e8fe89921 100644
--- a/src/driver-hypervisor.h
+++ b/src/driver-hypervisor.h
@@ -1397,7 +1397,7 @@ typedef int
 (*virDrvDomainAuthorizedSSHKeysSet)(virDomainPtr domain,
                                     const char *user,
                                     const char **keys,
-                                    int nkeys,
+                                    unsigned int nkeys,
                                     unsigned int flags);
 
 typedef struct _virHypervisorDriver virHypervisorDriver;
diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c
index 63d4954e68..0d0041f983 100644
--- a/src/libvirt-domain.c
+++ b/src/libvirt-domain.c
@@ -12853,12 +12853,12 @@ int
 virDomainAuthorizedSSHKeysSet(virDomainPtr domain,
                               const char *user,
                               const char **keys,
-                              int nkeys,
+                              unsigned int nkeys,
                               unsigned int flags)
 {
     virConnectPtr conn;
 
-    VIR_DOMAIN_DEBUG(domain, "user=%s, keys=%p, nkeys=%d, flags=0x%x",
+    VIR_DOMAIN_DEBUG(domain, "user=%s, keys=%p, nkeys=%u, flags=0x%x",
                      user, keys, nkeys, flags);
 
     virResetLastError();
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index b69be1bedc..20e24e2479 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -20134,7 +20134,7 @@ static int
 qemuDomainAuthorizedSSHKeysSet(virDomainPtr dom,
                                const char *user,
                                const char **keys,
-                               int nkeys,
+                               unsigned int nkeys,
                                unsigned int flags)
 {
     virQEMUDriverPtr driver = dom->conn->privateData;
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 6c0e7f7514..b0af3ee88e 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -8066,7 +8066,7 @@ static int
 remoteDomainAuthorizedSSHKeysSet(virDomainPtr domain,
                                  const char *user,
                                  const char **keys,
-                                 int nkeys,
+                                 unsigned int nkeys,
                                  unsigned int flags)
 {
     int rv = -1;