diff --git a/nulib2/ArcUtils.c b/nulib2/ArcUtils.c
index d52aa09..31b1f4a 100644
--- a/nulib2/ArcUtils.c
+++ b/nulib2/ArcUtils.c
@@ -199,10 +199,17 @@ GetSimpleComment(NulibState* pState, const char* pathname, int maxLen)
 static Boolean
 SpecMatchesRecord(NulibState* pState, const char* spec, const NuRecord* pRecord)
 {
+#ifdef NU_CASE_SENSITIVE
     if (NState_GetModRecurse(pState))
         return (strncmp(spec, pRecord->filename, strlen(spec)) == 0);
     else
         return (strcmp(spec, pRecord->filename) == 0);
+#else
+    if (NState_GetModRecurse(pState))
+        return (strncasecmp(spec, pRecord->filename, strlen(spec)) == 0);
+    else
+        return (strcasecmp(spec, pRecord->filename) == 0);
+#endif
 }
 
 /*
diff --git a/nulib2/Binary2.c b/nulib2/Binary2.c
index 75a7420..231f2af 100644
--- a/nulib2/Binary2.c
+++ b/nulib2/Binary2.c
@@ -71,6 +71,7 @@ NameIsSpecified(NulibState* pState, const char* filename)
 
     pSpec = NState_GetFilespecPointer(pState);
     for (i = NState_GetFilespecCount(pState); i > 0; i--, pSpec++) {
+#ifdef NU_CASE_SENSITIVE
         if (NState_GetModRecurse(pState)) {
             if (strncmp(*pSpec, filename, strlen(*pSpec)) == 0)
                 return true;
@@ -78,6 +79,15 @@ NameIsSpecified(NulibState* pState, const char* filename)
             if (strcmp(*pSpec, filename) == 0)
                 return true;
         }
+#else
+        if (NState_GetModRecurse(pState)) {
+            if (strncasecmp(*pSpec, filename, strlen(*pSpec)) == 0)
+                return true;
+        } else {
+            if (strcasecmp(*pSpec, filename) == 0)
+                return true;
+        }
+#endif
     }
 
     return false;
diff --git a/nulib2/ChangeLog.txt b/nulib2/ChangeLog.txt
index 808f8cc..ffd13db 100644
--- a/nulib2/ChangeLog.txt
+++ b/nulib2/ChangeLog.txt
@@ -1,6 +1,7 @@
 2003/02/18  fadden
     - When extracting with "-ee", disk images now have ".PO" appended.
     - Resurrected HandleAddNotFound().
+    - Switched to case-sensitive filename comparisons.
 
 2003/02/08  fadden
     - Upped version to v2.0.0.