diff --git a/prover/prover.go b/prover/prover.go
index 452dd6b5f..031b8fcbf 100644
--- a/prover/prover.go
+++ b/prover/prover.go
@@ -862,6 +862,9 @@ func (p *Prover) cancelProof(ctx context.Context, blockID uint64) {
 	if cancel, ok := p.currentBlocksBeingProven[blockID]; ok {
 		cancel()
 		delete(p.currentBlocksBeingProven, blockID)
+		if !p.cfg.OracleProver {
+			p.capacityManager.ReleaseOneCapacity()
+		}
 	}
 }