diff --git a/panda/src/putil/bam.h b/panda/src/putil/bam.h
index e21dadbc14..aa3d15601b 100644
--- a/panda/src/putil/bam.h
+++ b/panda/src/putil/bam.h
@@ -32,6 +32,7 @@ static const unsigned short _bam_major_ver = 6;
 // Bumped to major version 6 on 2006-02-11 to factor out PandaNode::CData.
 
 static const unsigned short _bam_first_minor_ver = 14;
+static const unsigned short _bam_last_minor_ver = 44;
 static const unsigned short _bam_minor_ver = 44;
 // Bumped to minor version 14 on 2007-12-19 to change default ColorAttrib.
 // Bumped to minor version 15 on 2008-04-09 to add TextureAttrib::_implicit_sort.
diff --git a/panda/src/putil/bamReader.cxx b/panda/src/putil/bamReader.cxx
index db360ae249..2c9f0958ea 100644
--- a/panda/src/putil/bamReader.cxx
+++ b/panda/src/putil/bamReader.cxx
@@ -107,7 +107,7 @@ init() {
   // can't safely load the file.
   if (_file_major != _bam_major_ver ||
       _file_minor < _bam_first_minor_ver ||
-      _file_minor > _bam_minor_ver) {
+      _file_minor > _bam_last_minor_ver) {
     bam_cat.error()
       << "Bam file is version " << _file_major << "." << _file_minor
       << ".\n";
@@ -120,7 +120,7 @@ init() {
       bam_cat.error()
         << "This program can only load version "
         << _bam_major_ver << "." << _bam_first_minor_ver << " through "
-        << _bam_major_ver << "." << _bam_minor_ver << " bams.\n";
+        << _bam_major_ver << "." << _bam_last_minor_ver << " bams.\n";
     }
 
     return false;
diff --git a/panda/src/putil/bamWriter.cxx b/panda/src/putil/bamWriter.cxx
index 3de731d27d..63a86efbbf 100644
--- a/panda/src/putil/bamWriter.cxx
+++ b/panda/src/putil/bamWriter.cxx
@@ -80,18 +80,18 @@ BamWriter(DatagramSink *target) :
       _file_minor = 21;
       bam_version.set_string_value("6 21");
 
-    } else if (_file_major > _bam_major_ver || _file_minor > _bam_minor_ver) {
+    } else if (_file_major > _bam_major_ver || _file_minor > _bam_last_minor_ver) {
       util_cat.error()
         << "bam-version is set to " << bam_version << ", but this version of "
            "Panda3D cannot produce .bam files newer than " << _bam_major_ver
-        << "." << _bam_minor_ver << ".  Set bam-version to a supported "
+        << "." << _bam_last_minor_ver << ".  Set bam-version to a supported "
            "version or leave it blank to write version " << _bam_major_ver
-        << "." << _bam_minor_ver << " files.\n";
+        << "." << _bam_last_minor_ver << " files.\n";
 
       _file_major = _bam_major_ver;
-      _file_minor = _bam_minor_ver;
+      _file_minor = _bam_last_minor_ver;
       bam_version.set_word(0, _bam_major_ver);
-      bam_version.set_word(1, _bam_minor_ver);
+      bam_version.set_word(1, _bam_last_minor_ver);
     }
   } else {
     _file_major = _bam_major_ver;
@@ -157,7 +157,7 @@ init() {
   _long_pta_id = false;
 
   nassertr_always(_file_major == _bam_major_ver, false);
-  nassertr_always(_file_minor <= _bam_minor_ver && _file_minor >= 21, false);
+  nassertr_always(_file_minor <= _bam_last_minor_ver && _file_minor >= 21, false);
 
   _file_endian = bam_endian;
   _file_texture_mode = bam_texture_mode;