diff --git a/core/capabilities/ccip/ccipsolana/executecodec.go b/core/capabilities/ccip/ccipsolana/executecodec.go
index 76a5598fe19..fb13a4eaa3d 100644
--- a/core/capabilities/ccip/ccipsolana/executecodec.go
+++ b/core/capabilities/ccip/ccipsolana/executecodec.go
@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"strings"
 
-	ethcommon "github.com/ethereum/go-ethereum/common"
 	agbinary "github.com/gagliardetto/binary"
 	"github.com/gagliardetto/solana-go"
 	"github.com/smartcontractkit/chainlink/v2/core/capabilities/ccip/common"
@@ -112,7 +111,7 @@ func (e *ExecutePluginCodecV1) Encode(ctx context.Context, report cciptypes.Exec
 			TokenAmounts:  tokenAmounts,
 			ExtraArgs:     extraArgs,
 			// TODO: is this available?
-			OnRampAddress: ethcommon.LeftPadBytes(msg.Header.OnRamp, 64),
+			OnRampAddress: msg.Header.OnRamp,
 		}
 
 		// should only have an offchain token data if there are tokens as part of the message
@@ -131,7 +130,6 @@ func (e *ExecutePluginCodecV1) Encode(ctx context.Context, report cciptypes.Exec
 		Message:             message,
 		OffchainTokenData:   offChainTokenData,
 		Proofs:              solanaProofs,
-		Root:                chainReport.Root,
 	}
 
 	var buf bytes.Buffer
diff --git a/core/capabilities/ccip/configs/solana/contract_reader.go b/core/capabilities/ccip/configs/solana/contract_reader.go
index 1f0521aa6be..4507d9d11c7 100644
--- a/core/capabilities/ccip/configs/solana/contract_reader.go
+++ b/core/capabilities/ccip/configs/solana/contract_reader.go
@@ -41,6 +41,15 @@ func DestContractReaderConfig() (config.ContractReader, error) {
 		},
 	})
 
+	// Prepend custom type so it takes priority over the IDL
+	offRampIDL.Types = append([]solanacodec.IdlTypeDef{{
+		Name: "OnRampAddress",
+		Type: solanacodec.IdlTypeDefTy{
+			Kind:  solanacodec.IdlTypeDefTyKindCustom,
+			Codec: "onramp_address",
+		},
+	}}, offRampIDL.Types...)
+
 	var routerIDL solanacodec.IDL
 	if err := json.Unmarshal([]byte(ccipRouterIDL), &routerIDL); err != nil {
 		return config.ContractReader{}, fmt.Errorf("unexpected error: invalid CCIP Router IDL, error: %w", err)
diff --git a/deployment/ccip/changeset/solana/cs_add_remote_chain.go b/deployment/ccip/changeset/solana/cs_add_remote_chain.go
index 93278ac0560..d2895b4b3e0 100644
--- a/deployment/ccip/changeset/solana/cs_add_remote_chain.go
+++ b/deployment/ccip/changeset/solana/cs_add_remote_chain.go
@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"strconv"
 
-	"github.com/ethereum/go-ethereum/common"
 	"github.com/gagliardetto/solana-go"
 
 	"github.com/smartcontractkit/mcms"
@@ -162,11 +161,12 @@ func doAddRemoteChainToSolana(
 	}
 
 	for remoteChainSel, update := range updates {
-		var onRampBytes [64]byte
+		var onRampAddress solOffRamp.OnRampAddress
+		// var onRampBytes [64]byte
 		// already verified, skipping errcheck
 		addressBytes, _ := s.GetOnRampAddressBytes(remoteChainSel)
-		addressBytes = common.LeftPadBytes(addressBytes, 64)
-		copy(onRampBytes[:], addressBytes)
+		copy(onRampAddress.Bytes[:], addressBytes)
+		onRampAddress.Len = uint32(len(addressBytes))
 
 		// verified while loading state
 		fqRemoteChainPDA, _, _ := solState.FindFqDestChainPDA(remoteChainSel, feeQuoterID)
@@ -286,7 +286,7 @@ func doAddRemoteChainToSolana(
 
 		solOffRamp.SetProgramID(offRampID)
 		validSourceChainConfig := solOffRamp.SourceChainConfig{
-			OnRamp:    [2][64]byte{onRampBytes, [64]byte{}},
+			OnRamp:    [2]solOffRamp.OnRampAddress{onRampAddress, {}},
 			IsEnabled: update.EnabledAsSource,
 		}
 		if offRampUsingMCMS {
diff --git a/deployment/ccip/changeset/testhelpers/test_assertions.go b/deployment/ccip/changeset/testhelpers/test_assertions.go
index 9e6c78bb1b4..abe1f949b57 100644
--- a/deployment/ccip/changeset/testhelpers/test_assertions.go
+++ b/deployment/ccip/changeset/testhelpers/test_assertions.go
@@ -542,7 +542,7 @@ func ConfirmCommitWithExpectedSeqNumRangeSol(
 		select {
 		case commitEvent := <-sink:
 			// if merkle root is zero, it only contains price updates
-			if commitEvent.Report.MerkleRoot == [32]uint8{} {
+			if commitEvent.Report == nil {
 				t.Logf("Skipping CommitReportAccepted with only price updates")
 				continue
 			}