diff --git a/Makefile.Inc b/Makefile.Inc
index 9b8bf7ed9..09df5fe7d 100644
--- a/Makefile.Inc
+++ b/Makefile.Inc
@@ -50,7 +50,7 @@ else
 	endif
 endif
 
-POSTRS_SETUP_REV = 0.7.0-rc1-distributed-verification
+POSTRS_SETUP_REV = 0.7.0-rc2-distributed-verification
 POSTRS_SETUP_ZIP = libpost-$(platform)-v$(POSTRS_SETUP_REV).zip
 POSTRS_SETUP_URL_ZIP ?= https://github.com/spacemeshos/post-rs/releases/download/v$(POSTRS_SETUP_REV)/$(POSTRS_SETUP_ZIP)
 ifeq ($(platform), windows)
diff --git a/internal/postrs/proof.go b/internal/postrs/proof.go
index 31fa2e421..97b6641bb 100644
--- a/internal/postrs/proof.go
+++ b/internal/postrs/proof.go
@@ -236,7 +236,7 @@ func (v *Verifier) VerifyProof(proof *shared.Proof, metadata *shared.ProofMetada
 		return nil
 	case C.VerifyResult_InvalidIndex:
 		result := castBytes[C.VerifyResult_InvalidIndex_Body](result.anon0[:])
-		return ErrInvalidIndex{Index: int(result.index_id)}
+		return &ErrInvalidIndex{Index: int(result.index_id)}
 	case C.VerifyResult_InvalidArgument:
 		return fmt.Errorf("invalid argument")
 	default:
diff --git a/verifying/verifying.go b/verifying/verifying.go
index 4d1e6579b..f193f3226 100644
--- a/verifying/verifying.go
+++ b/verifying/verifying.go
@@ -12,6 +12,9 @@ import (
 	"github.com/spacemeshos/post/shared"
 )
 
+// Reexport from internal pkg.
+type ErrInvalidIndex = postrs.ErrInvalidIndex
+
 // VerifyVRFNonce ensures the validity of a nonce for a given node.
 // AtxId is the id of the ATX that was selected by the node for its commitment.
 func VerifyVRFNonce(nonce *uint64, m *shared.VRFNonceMetadata, opts ...OptionFunc) error {