diff --git a/Quake/common.c b/Quake/common.c
index b4e6c047..69a3d84f 100644
--- a/Quake/common.c
+++ b/Quake/common.c
@@ -188,7 +188,7 @@ void Vec_Append (void **pvec, size_t element_size, const void *data, size_t coun
 	if (!count)
 		return;
 	Vec_Grow (pvec, element_size, count);
-	memcpy ((byte *)*pvec + VEC_HEADER(*pvec).size, data, count * element_size);
+	memcpy ((byte *)*pvec + VEC_HEADER(*pvec).size * element_size, data, count * element_size);
 	VEC_HEADER(*pvec).size += count;
 }