diff --git a/src/basic/env-util.c b/src/basic/env-util.c
index bc121228d5..7608f90a4a 100644
--- a/src/basic/env-util.c
+++ b/src/basic/env-util.c
@@ -973,7 +973,7 @@ int secure_getenv_bool(const char *p) {
         return parse_boolean(e);
 }
 
-int getenv_uint64_secure(const char *p, uint64_t *ret) {
+int secure_getenv_uint64(const char *p, uint64_t *ret) {
         const char *e;
 
         assert(p);
diff --git a/src/basic/env-util.h b/src/basic/env-util.h
index 3ac1dfb379..6610ca8ca1 100644
--- a/src/basic/env-util.h
+++ b/src/basic/env-util.h
@@ -64,7 +64,7 @@ char *strv_env_pairs_get(char **l, const char *name) _pure_;
 int getenv_bool(const char *p);
 int secure_getenv_bool(const char *p);
 
-int getenv_uint64_secure(const char *p, uint64_t *ret);
+int secure_getenv_uint64(const char *p, uint64_t *ret);
 
 /* Like setenv, but calls unsetenv if value == NULL. */
 int set_unset_env(const char *name, const char *value, bool overwrite);
diff --git a/src/sysusers/sysusers.c b/src/sysusers/sysusers.c
index 6e28b1cf8f..e443b10211 100644
--- a/src/sysusers/sysusers.c
+++ b/src/sysusers/sysusers.c
@@ -569,7 +569,7 @@ static int write_temporary_passwd(
 static usec_t epoch_or_now(void) {
         uint64_t epoch;
 
-        if (getenv_uint64_secure("SOURCE_DATE_EPOCH", &epoch) >= 0) {
+        if (secure_getenv_uint64("SOURCE_DATE_EPOCH", &epoch) >= 0) {
                 if (epoch > UINT64_MAX/USEC_PER_SEC) /* Overflow check */
                         return USEC_INFINITY;
                 return (usec_t) epoch * USEC_PER_SEC;