diff --git a/opennurbs_instance.cpp b/opennurbs_instance.cpp
index a387abc5..19cfdf67 100644
--- a/opennurbs_instance.cpp
+++ b/opennurbs_instance.cpp
@@ -2395,8 +2395,8 @@ bool ON_InstanceDefinition::Internal_WriteV5(
     if (!binary_archive.WriteDouble(m_us.MetersPerUnit(ON_DBL_QNAN)))
       break;
 
-    const bool bLegacyBoolThatIsAlwasyFalse = false;
-    if (!binary_archive.WriteBool(bLegacyBoolThatIsAlwasyFalse))
+    const bool bLegacyBoolThatIsAlwaysFalse = false;
+    if (!binary_archive.WriteBool(bLegacyBoolThatIsAlwaysFalse))
       break;
 
     // version 1.4 fields
diff --git a/opennurbs_subd.cpp b/opennurbs_subd.cpp
index a9cf6c3e..adbb9e10 100644
--- a/opennurbs_subd.cpp
+++ b/opennurbs_subd.cpp
@@ -6623,11 +6623,11 @@ static const ON_wString Internal_DescribeWaste(size_t waste, size_t total)
   double e = fabs(i - p);
 
   ON_wString description = ON_wString::EmptyString;
-  const double negligable = 0.1;
-  if (e < negligable)
+  const double negligible = 0.1;
+  if (e < negligible)
   {
     if (0.0 == i)
-      description = L" negligable";
+      description = L" negligible";
     p = i;
   }
   if (description.IsEmpty())