diff --git a/test/unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp b/test/unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp
index b5d34843f..90ba860c3 100644
--- a/test/unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp
+++ b/test/unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp
@@ -71,7 +71,7 @@ public:
             AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATIONS,
             false, // Set config value to false.
             [&](const aiScene *scene) {
-                EXPECT_EQ(0, scene->mNumAnimations);
+                EXPECT_EQ(0u, scene->mNumAnimations);
                 EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_INFOS));
                 EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_GROUPS));
                 EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_TRANSITION_GRAPH));
@@ -89,7 +89,7 @@ public:
             AI_CONFIG_IMPORT_MDL_HL1_READ_BLEND_CONTROLLERS,
             false, // Set config value to false.
             [&](const aiScene *scene) {
-                EXPECT_NE(0, scene->mNumAnimations);
+                EXPECT_NE(0u, scene->mNumAnimations);
 
                 const aiNode *sequence_infos = scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_INFOS);
                 EXPECT_NE(nullptr, sequence_infos);
@@ -107,7 +107,7 @@ public:
             AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATION_EVENTS,
             false, // Set config value to false.
             [&](const aiScene *scene) {
-                EXPECT_NE(0, scene->mNumAnimations);
+                EXPECT_NE(0u, scene->mNumAnimations);
 
                 const aiNode *sequence_infos = scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_INFOS);
                 EXPECT_NE(nullptr, sequence_infos);
diff --git a/test/unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp b/test/unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp
index cbdbfc65e..9b20b2caa 100644
--- a/test/unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp
+++ b/test/unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp
@@ -211,7 +211,7 @@ public:
 
         const aiNode *bodyparts_node = scene->mRootNode->FindNode(AI_MDL_HL1_NODE_BODYPARTS);
         EXPECT_NE(nullptr, bodyparts_node);
-        EXPECT_EQ(3, bodyparts_node->mNumChildren);
+        EXPECT_EQ(3u, bodyparts_node->mNumChildren);
         for (unsigned int i = 0; i < bodyparts_node->mNumChildren; ++i) {
             expect_named_children(bodyparts_node->mChildren[i],
                     expected_bodypart_sub_models_names[i]);