diff --git a/ChangeLog b/ChangeLog
index 86596f25..cd1e0f6a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2009-04-25  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* lib/getlong.c: Do not check for NULL string but empty string.
+
 2009-04-25  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* lib/groupio.c: Updated splint annotations.
diff --git a/lib/getlong.c b/lib/getlong.c
index 367ae9f8..47c3a605 100644
--- a/lib/getlong.c
+++ b/lib/getlong.c
@@ -49,7 +49,7 @@ int getlong (const char *numstr, /*@out@*/long int *result)
 
 	errno = 0;
 	val = strtol (numstr, &endptr, 0);
-	if (('\0' == numstr) || ('\0' != *endptr) || (ERANGE == errno)) {
+	if (('\0' == *numstr) || ('\0' != *endptr) || (ERANGE == errno)) {
 		return 0;
 	}