diff --git a/ChangeLog b/ChangeLog
index 55a96c60..58bc248b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2009-09-08  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* src/newusers.c: Prefer #ifdef over #if.
+
 2009-09-08  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* configure.in: We do not use SETPGRP_VOID, and already assume
diff --git a/src/newusers.c b/src/newusers.c
index a7793ab3..85b2a959 100644
--- a/src/newusers.c
+++ b/src/newusers.c
@@ -966,7 +966,7 @@ int main (int argc, char **argv)
 		}
 		newpw = *pw;
 
-#if USE_PAM
+#ifdef USE_PAM
 		/* keep the list of user/password for later update by PAM */
 		nusers++;
 		lines     = realloc (lines,     sizeof (lines[0])     * nusers);
@@ -975,7 +975,7 @@ int main (int argc, char **argv)
 		lines[nusers-1]     = line;
 		usernames[nusers-1] = strdup (fields[0]);
 		passwords[nusers-1] = strdup (fields[1]);
-#endif
+#endif				/* USE_PAM */
 		if (add_passwd (&newpw, fields[1])) {
 			fprintf (stderr,
 			         _("%s: line %d: can't update password\n"),