diff --git a/code/CMakeLists.txt b/code/CMakeLists.txt
index aa5dffcf3..82497467a 100644
--- a/code/CMakeLists.txt
+++ b/code/CMakeLists.txt
@@ -844,7 +844,7 @@ SET( assimp_src
 
 )
 ADD_DEFINITIONS( -DOPENDDLPARSER_BUILD )
-ADD_DEFINITIONS( -DASSIMP_BUILD_NO_3DS_IMPORTER)
+
 INCLUDE_DIRECTORIES(
     ${IRRXML_INCLUDE_DIR}
     ../contrib/openddlparser/include
diff --git a/test/unit/ut3DSImportExport.cpp b/test/unit/ut3DSImportExport.cpp
index 07e6fc0f1..1e9bfe0d0 100644
--- a/test/unit/ut3DSImportExport.cpp
+++ b/test/unit/ut3DSImportExport.cpp
@@ -53,7 +53,11 @@ public:
     virtual bool importerTest() {
         Assimp::Importer importer;
         const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/3DS/fels.3ds", 0 );
+#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
         return nullptr != scene;
+#else
+        return nullptr == scene;
+#endif // ASSIMP_BUILD_NO_3DS_IMPORTER
     }
 };
 
diff --git a/test/unit/utASEImportExport.cpp b/test/unit/utASEImportExport.cpp
index baf900067..841aff549 100644
--- a/test/unit/utASEImportExport.cpp
+++ b/test/unit/utASEImportExport.cpp
@@ -53,7 +53,11 @@ public:
     virtual bool importerTest() {
         Assimp::Importer importer;
         const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/ASE/ThreeCubesGreen.ASE", 0 );
+#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
         return nullptr != scene;
+#else 
+        return nullptr == scene;
+#endif // ASSIMP_BUILD_NO_3DS_IMPORTER
     }
 };