diff --git a/test/unit/utMetadata.cpp b/test/unit/utMetadata.cpp
index 42f632bce..0801ffd3f 100644
--- a/test/unit/utMetadata.cpp
+++ b/test/unit/utMetadata.cpp
@@ -199,7 +199,7 @@ TEST_F( utMetadata, copy_test ) {
     m_data->Set( 6, "aiVector3D", vecVal );
 
     aiMetadata copy( *m_data );
-    EXPECT_EQ( 7, copy.mNumProperties );
+    EXPECT_EQ( 7u, copy.mNumProperties );
 
     // bool test
     {
diff --git a/test/unit/utPLYImportExport.cpp b/test/unit/utPLYImportExport.cpp
index e0f96195b..c009bda39 100644
--- a/test/unit/utPLYImportExport.cpp
+++ b/test/unit/utPLYImportExport.cpp
@@ -132,10 +132,10 @@ TEST_F( utPLYImportExport, vertexColorTest ) {
     EXPECT_EQ(true, scene->mMeshes[0]->HasVertexColors(0));
 
     auto first_face = scene->mMeshes[0]->mFaces[0];
-    EXPECT_EQ(3, first_face.mNumIndices);
-    EXPECT_EQ(0, first_face.mIndices[0]);
-    EXPECT_EQ(1, first_face.mIndices[1]);
-    EXPECT_EQ(2, first_face.mIndices[2]);
+    EXPECT_EQ(3u, first_face.mNumIndices);
+    EXPECT_EQ(0u, first_face.mIndices[0]);
+    EXPECT_EQ(1u, first_face.mIndices[1]);
+    EXPECT_EQ(2u, first_face.mIndices[2]);
 }
 
 //Test issue #623, PLY importer should not automatically create faces