diff --git a/src/lib/libast/hash/hashalloc.c b/src/lib/libast/hash/hashalloc.c
index 04d11fdb0..d01a13968 100644
--- a/src/lib/libast/hash/hashalloc.c
+++ b/src/lib/libast/hash/hashalloc.c
@@ -50,6 +50,7 @@ hashalloc(Hash_table_t* ref, ...)
 	va_list*		vp = va;
 	Hash_region_f		region = 0;
 	void*			handle;
+	va_listarg		tmpval;
 
 	va_start(ap, ref);
 
@@ -152,7 +153,8 @@ hashalloc(Hash_table_t* ref, ...)
 				va_copy(*vp, ap);
 				vp++;
 			}
-			va_copy(ap, va_listval(va_arg(ap, va_listarg)));
+			tmpval = va_listval(va_arg(ap, va_listarg));
+			va_copy(ap, tmpval);
 			break;
 		case 0:
 			if (vp > va)
diff --git a/src/lib/libast/string/tokscan.c b/src/lib/libast/string/tokscan.c
index bea2baf6c..456dc1911 100644
--- a/src/lib/libast/string/tokscan.c
+++ b/src/lib/libast/string/tokscan.c
@@ -189,6 +189,7 @@ tokscan(register char* s, char** nxt, const char* fmt, ...)
 	char**		p_string;
 	char*		prv_f = 0;
 	va_list		prv_ap;
+	va_listarg	tmpval;
 
 	va_start(ap, fmt);
 	if (!*s || *s == '\n')
@@ -234,7 +235,8 @@ tokscan(register char* s, char** nxt, const char* fmt, ...)
 			prv_f = f;
 			f = va_arg(ap, char*);
 			va_copy(prv_ap, ap);
-			va_copy(ap, va_listval(va_arg(ap, va_listarg)));
+			tmpval = va_listval(va_arg(ap, va_listarg));
+			va_copy(ap, tmpval);
 			continue;
 		case 'c':
 			p_char = va_arg(ap, char*);