diff --git a/abci/types/result.go b/abci/types/result.go
index afa2aced9..d899b771a 100644
--- a/abci/types/result.go
+++ b/abci/types/result.go
@@ -58,11 +58,6 @@ func (r ResponseVerifyVoteExtension) IsErr() bool {
 	return r.Result != ResponseVerifyVoteExtension_ACCEPT
 }
 
-// IsOK returns true if Code is OK
-func (r ResponseProcessProposal) IsOK() bool {
-	return r.Accept
-}
-
 //---------------------------------------------------------------------------
 // override JSON marshaling so we emit defaults (ie. disable omitempty)
 
diff --git a/internal/state/execution.go b/internal/state/execution.go
index 32ca0d514..2b5721da1 100644
--- a/internal/state/execution.go
+++ b/internal/state/execution.go
@@ -166,7 +166,7 @@ func (blockExec *BlockExecutor) ProcessProposal(
 		return false, ErrInvalidBlock(err)
 	}
 
-	return resp.IsOK(), nil
+	return resp.Accept, nil
 }
 
 // ValidateBlock validates the given block against the given state.