diff --git a/code/3MF/D3MFOpcPackage.cpp b/code/3MF/D3MFOpcPackage.cpp
index 221cf9370..3a6e4dbc9 100644
--- a/code/3MF/D3MFOpcPackage.cpp
+++ b/code/3MF/D3MFOpcPackage.cpp
@@ -152,6 +152,15 @@ int IOSystem2Unzip::testerror(voidpf /*opaque*/, voidpf /*stream*/) {
 zlib_filefunc_def IOSystem2Unzip::get(IOSystem* pIOHandler) {
     zlib_filefunc_def mapping;
 
+#ifdef ASSIMP_USE_HUNTER
+    mapping.zopen_file = (open_file_func)open;
+    mapping.zread_file = (read_file_func)read;
+    mapping.zwrite_file = (write_file_func)write;
+    mapping.ztell_file = (tell_file_func)tell;
+    mapping.zseek_file = (seek_file_func)seek;
+    mapping.zclose_file = (close_file_func)close;
+    mapping.zerror_file = (error_file_func)testerror;
+#else
     mapping.zopen_file = open;
     mapping.zread_file = read;
     mapping.zwrite_file = write;
@@ -159,6 +168,7 @@ zlib_filefunc_def IOSystem2Unzip::get(IOSystem* pIOHandler) {
     mapping.zseek_file = seek;
     mapping.zclose_file = close;
     mapping.zerror_file = testerror;
+#endif
     mapping.opaque = reinterpret_cast<voidpf>(pIOHandler);
 
     return mapping;
diff --git a/code/OpenGEX/OpenGEXImporter.cpp b/code/OpenGEX/OpenGEXImporter.cpp
index 2de9bd85e..07d3efd5e 100644
--- a/code/OpenGEX/OpenGEXImporter.cpp
+++ b/code/OpenGEX/OpenGEXImporter.cpp
@@ -213,7 +213,11 @@ static void propId2StdString( Property *prop, std::string &name, std::string &ke
     }
 
     if ( nullptr != prop->m_key ) {
+#ifdef ASSIMP_USE_HUNTER
+        name = prop->m_key->m_text.m_buffer;
+#else
         name = prop->m_key->m_buffer;
+#endif
         if ( Value::ddl_string == prop->m_value->m_type ) {
             key = prop->m_value->getString();
         }
@@ -498,7 +502,11 @@ static void getRefNames( DDLNode *node, std::vector<std::string> &names ) {
         for( size_t i = 0; i < ref->m_numRefs; i++ )  {
             Name *currentName( ref->m_referencedName[ i ] );
             if( nullptr != currentName && nullptr != currentName->m_id ) {
+#ifdef ASSIMP_USE_HUNTER
+                const std::string name( currentName->m_id->m_text.m_buffer );
+#else
                 const std::string name( currentName->m_id->m_buffer );
+#endif
                 if( !name.empty() ) {
                     names.push_back( name );
                 }
@@ -1039,7 +1047,11 @@ void OpenGEXImporter::handleColorNode( ODDLParser::DDLNode *node, aiScene * /*pS
                 col.g = col4.g;
                 col.b = col4.b;
             }
+#ifdef ASSIMP_USE_HUNTER
+            const ColorType colType( getColorType( &prop->m_key->m_text ) );
+#else
             const ColorType colType( getColorType( prop->m_key ) );
+#endif
             if( DiffuseColor == colType ) {
                 m_currentMaterial->AddProperty( &col, 1, AI_MATKEY_COLOR_DIFFUSE );
             } else if( SpecularColor == colType ) {
diff --git a/code/Q3BSP/Q3BSPZipArchive.cpp b/code/Q3BSP/Q3BSPZipArchive.cpp
index 0b6664842..931f2b905 100644
--- a/code/Q3BSP/Q3BSPZipArchive.cpp
+++ b/code/Q3BSP/Q3BSPZipArchive.cpp
@@ -123,6 +123,15 @@ int IOSystem2Unzip::testerror(voidpf /*opaque*/, voidpf /*stream*/) {
 zlib_filefunc_def IOSystem2Unzip::get(IOSystem* pIOHandler) {
     zlib_filefunc_def mapping;
 
+#ifdef ASSIMP_USE_HUNTER
+    mapping.zopen_file = (open_file_func)open;
+    mapping.zread_file = (read_file_func)read;
+    mapping.zwrite_file = (write_file_func)write;
+    mapping.ztell_file = (tell_file_func)tell;
+    mapping.zseek_file = (seek_file_func)seek;
+    mapping.zclose_file = (close_file_func)close;
+    mapping.zerror_file = (error_file_func)testerror;
+#else
     mapping.zopen_file = open;
     mapping.zread_file = read;
     mapping.zwrite_file = write;
@@ -130,6 +139,7 @@ zlib_filefunc_def IOSystem2Unzip::get(IOSystem* pIOHandler) {
     mapping.zseek_file = seek;
     mapping.zclose_file = close;
     mapping.zerror_file = testerror;
+#endif
     mapping.opaque = (voidpf) pIOHandler;
 
     return mapping;