diff --git a/libraries/render-utils/src/CauterizedModel.cpp b/libraries/render-utils/src/CauterizedModel.cpp
index 2105806134..30121a232d 100644
--- a/libraries/render-utils/src/CauterizedModel.cpp
+++ b/libraries/render-utils/src/CauterizedModel.cpp
@@ -48,7 +48,7 @@ void CauterizedModel::createVisibleRenderItemSet() {
         const auto& meshes = _renderGeometry->getMeshes();
 
         // all of our mesh vectors must match in size
-        if ((int)meshes.size() != _meshStates.size()) {
+        if (meshes.size() != _meshStates.size()) {
             qCDebug(renderutils) << "WARNING!!!! Mesh Sizes don't match! We will not segregate mesh groups yet.";
             return;
         }
@@ -104,7 +104,7 @@ void CauterizedModel::updateClusterMatrices() {
     _needsUpdateClusterMatrices = false;
     const FBXGeometry& geometry = getFBXGeometry();
 
-    for (int i = 0; i < _meshStates.size(); i++) {
+    for (int i = 0; i < (int)_meshStates.size(); i++) {
         Model::MeshState& state = _meshStates[i];
         const FBXMesh& mesh = geometry.meshes.at(i);
         for (int j = 0; j < mesh.clusters.size(); j++) {
@@ -179,7 +179,7 @@ void CauterizedModel::updateRenderItems() {
             modelTransform.setRotation(self->getRotation());
 
             render::Transaction transaction;
-            for (int i = 0; i < self->_modelMeshRenderItemIDs.size(); i++) {
+            for (int i = 0; i < (int)self->_modelMeshRenderItemIDs.size(); i++) {
 
                 auto itemID = self->_modelMeshRenderItemIDs[i];
                 auto meshIndex = self->_modelMeshRenderItemShapes[i].meshIndex;
diff --git a/libraries/render-utils/src/MeshPartPayload.cpp b/libraries/render-utils/src/MeshPartPayload.cpp
index 5426ed0ea6..1ea3e1a705 100644
--- a/libraries/render-utils/src/MeshPartPayload.cpp
+++ b/libraries/render-utils/src/MeshPartPayload.cpp
@@ -598,7 +598,7 @@ void ModelMeshPartPayload::computeAdjustedLocalBound(const std::vector<glm::mat4
     _adjustedLocalBound = _localBound;
     if (clusterMatrices.size() > 0) {
         _adjustedLocalBound.transform(clusterMatrices[0]);
-        for (int i = 1; i < clusterMatrices.size(); ++i) {
+        for (int i = 1; i < (int)clusterMatrices.size(); ++i) {
             AABox clusterBound = _localBound;
             clusterBound.transform(clusterMatrices[i]);
             _adjustedLocalBound += clusterBound;
diff --git a/libraries/render-utils/src/Model.cpp b/libraries/render-utils/src/Model.cpp
index f27aa284be..428fcc7a54 100644
--- a/libraries/render-utils/src/Model.cpp
+++ b/libraries/render-utils/src/Model.cpp
@@ -238,7 +238,7 @@ void Model::updateRenderItems() {
         modelTransform.setScale(glm::vec3(1.0f));
 
         render::Transaction transaction;
-        for (int i = 0; i < self->_modelMeshRenderItemIDs.size(); i++) {
+        for (int i = 0; i < (int) self->_modelMeshRenderItemIDs.size(); i++) {
 
             auto itemID = self->_modelMeshRenderItemIDs[i];
             auto meshIndex = self->_modelMeshRenderItemShapes[i].meshIndex;
@@ -1124,7 +1124,7 @@ void Model::updateClusterMatrices() {
     }
     _needsUpdateClusterMatrices = false;
     const FBXGeometry& geometry = getFBXGeometry();
-    for (int i = 0; i < _meshStates.size(); i++) {
+    for (int i = 0; i < (int) _meshStates.size(); i++) {
         MeshState& state = _meshStates[i];
         const FBXMesh& mesh = geometry.meshes.at(i);
         for (int j = 0; j < mesh.clusters.size(); j++) {
@@ -1241,7 +1241,7 @@ void Model::createVisibleRenderItemSet() {
     const auto& meshes = _renderGeometry->getMeshes();
 
     // all of our mesh vectors must match in size
-    if ((int)meshes.size() != _meshStates.size()) {
+    if (meshes.size() != _meshStates.size()) {
         qCDebug(renderutils) << "WARNING!!!! Mesh Sizes don't match! We will not segregate mesh groups yet.";
         return;
     }
diff --git a/libraries/render-utils/src/SoftAttachmentModel.cpp b/libraries/render-utils/src/SoftAttachmentModel.cpp
index f364e9c037..63991f9422 100644
--- a/libraries/render-utils/src/SoftAttachmentModel.cpp
+++ b/libraries/render-utils/src/SoftAttachmentModel.cpp
@@ -43,7 +43,7 @@ void SoftAttachmentModel::updateClusterMatrices() {
 
     const FBXGeometry& geometry = getFBXGeometry();
 
-    for (int i = 0; i < _meshStates.size(); i++) {
+    for (int i = 0; i < (int) _meshStates.size(); i++) {
         MeshState& state = _meshStates[i];
         const FBXMesh& mesh = geometry.meshes.at(i);