diff --git a/common/qargs.c b/common/qargs.c
index a1dbbc9..1f8f312 100644
--- a/common/qargs.c
+++ b/common/qargs.c
@@ -25,6 +25,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include <malloc.h>
 #include <string.h>
 #include <ctype.h>
+#include <stdlib.h>
 #include <qtypes.h>
 #include <common.h>
 #include <crc.h>