diff --git a/theories/numbers.v b/theories/numbers.v
index 56b1706a33572b91889e8e9a95c0e8319ebaf94c..df8c21a25c6b051cfb23e0d03af4a87ecad61e80 100644
--- a/theories/numbers.v
+++ b/theories/numbers.v
@@ -504,6 +504,8 @@ Infix "+" := Qp_plus : Qp_scope.
 Infix "-" := Qp_minus : Qp_scope.
 Infix "/" := Qp_div : Qp_scope.
 
+Instance Qp_inhabited : Inhabited Qp := populate 1%Qp.
+
 Lemma Qp_eq x y : x = y ↔ Qp_car x = Qp_car y.
 Proof.
   split; [by intros ->|].