diff --git a/ChangeLog b/ChangeLog
index 553f0a1..c17b17d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -134,7 +134,7 @@ Version 0.17.1 (2019-6-24)
 Version 0.16.3 (2019-6-21)
    * Use hash checksums for checking file integrity using the `xxhash` library
       * New parameter: `qsave` -- `check_hash`, computes a checksum on the serialized data
-      * New paramter: `qread` -- `strict`, throws an error if checksum does not pre-computed value
+      * New parameter: `qread` -- `strict`, throws an error if checksum does not pre-computed value
    * `qdump` function reports checksums
    * Performance optimizations -- use C interface directly rather than Rcpp containers
       * About 180% serialization speed improvement for large lists (e.g., `as.list(runif(1e6))`)
diff --git a/src/qs_serialize_common.h b/src/qs_serialize_common.h
index 0f530ff..a0fc06a 100644
--- a/src/qs_serialize_common.h
+++ b/src/qs_serialize_common.h
@@ -358,9 +358,9 @@ void writeObject(T * const sobj, SEXP x) {
   // evaluate promises immediately
   if(!trust_promises_global) {
     if(TYPEOF(x) == PROMSXP) {
-      int error_occured = 0;
-      SEXP xeval = R_tryEval(x, R_BaseEnv, &error_occured);
-      if(error_occured) {
+      int error_occurred = 0;
+      SEXP xeval = R_tryEval(x, R_BaseEnv, &error_occurred);
+      if(error_occurred) {
         writeObject(sobj, R_NilValue);
       } else {
         PROTECT(xeval);