diff --git a/rdo.c b/rdo.c
index 089b20b..6d25adb 100644
--- a/rdo.c
+++ b/rdo.c
@@ -1,18 +1,36 @@
 #include <pwd.h>
 #include <grp.h>
 #include <err.h>
-#include <shadow.h>
 #include <crypt.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef __linux__
+#include <shadow.h>
+#endif
+
 #include "readpassphrase.h"
 #include "sessions.h"
 
 #define VERSION "1.4.2"
 
+char* getpwhash(struct passwd* pw) {
+    if (pw->pw_passwd[0] != 'x')
+        return pw->pw_passwd;
+
+#ifdef __linux__
+    struct spwd* pw_entry = getspnam(pw->pw_name);
+
+    if (!pw_entry || !pw_entry->sp_pwdp)
+        err(1, "Could not get shadow entry");
+    return pw_entry->sp_pwdp;
+#endif
+
+    errx(1, "Could not get hashed password entry");
+}
+
 void getconf(FILE* fp, const char* entry, char* result, size_t len_result) {
     char* line = NULL;
     size_t len = 0;
@@ -114,23 +132,20 @@ int main(int argc, char** argv) {
     if (!current_member)
         errx(1, "You are not allowed to execute rdo.");
 
-    struct spwd* shadowEntry = getspnam(pw->pw_name);
-
-    if (!shadowEntry || !shadowEntry->sp_pwdp)
-        err(1, "Could not get shadow entry");
+    char* user_hashed_pw = getpwhash(pw);
 
     tries = 0;
     while (tries < 3) {
         if (!readpassphrase("(rdo) Password: ", password, sizeof(password), read_pw_from_stdin))
             err(1, "Could not get passphrase");
 
-        char* hashed_pw = crypt(password, shadowEntry->sp_pwdp);
+        char* given_hashed_pw = crypt(password, user_hashed_pw);
         memset(password, 0, sizeof(password));
 
-        if (!hashed_pw)
+        if (!given_hashed_pw)
             errx(1, "Could not hash password, does your user have a password?");
 
-        if (strcmp(shadowEntry->sp_pwdp, hashed_pw) == 0) {
+        if (strcmp(given_hashed_pw, user_hashed_pw) == 0) {
             if (!read_pw_from_stdin)
                 setsession(getppid(), ts_ttl, ruid);
             runprog(&argv[read_pw_from_stdin+1]);