diff --git a/src/svc.c b/src/svc.c
index eb76765d..92913436 100644
--- a/src/svc.c
+++ b/src/svc.c
@@ -686,7 +686,7 @@ int svc_conflicts(svc_t *svc)
 	return rc;
 }
 
-int svc_ifthen(const char *ident, const char *stmt)
+int svc_ifthen(const char *ident, char *stmt)
 {
 	int not = 0;
 	svc_t *svc;
diff --git a/src/svc.h b/src/svc.h
index a7eca2b9..bbafdaad 100644
--- a/src/svc.h
+++ b/src/svc.h
@@ -238,7 +238,7 @@ void	    svc_prune_bootstrap	   (void);
 void        svc_enable             (svc_t *svc);
 int         svc_enabled            (svc_t *svc);
 int         svc_conflicts          (svc_t *svc);
-int         svc_ifthen             (const char *ident, const char *ifstm);
+int         svc_ifthen             (const char *ident, char *ifstm);
 
 int         svc_parse_jobstr       (char *str, size_t len, void *user_data, int (*found)(svc_t *, void *), int (not_found)(char *, char *, void *));