diff --git a/sdk/openbr_plugin.cpp b/sdk/openbr_plugin.cpp
index 0df4a5a..a767c72 100644
--- a/sdk/openbr_plugin.cpp
+++ b/sdk/openbr_plugin.cpp
@@ -495,7 +495,7 @@ QStringList Object::parameters() const
 {
     QStringList parameters;
 
-    for (int i = first_available_property_idx; i < metaObject()->propertyCount();i++) {
+    for (int i = firstAvailablePropertyIdx; i < metaObject()->propertyCount();i++) {
         QMetaProperty property = metaObject()->property(i);
         if (property.isStored(this)) continue;
         parameters.append(QString("%1 %2 = %3").arg(property.typeName(), property.name(), property.read(this).toString()));
@@ -715,7 +715,7 @@ void Object::init(const File &file_)
     QString name = metaObject()->className();
     if (name.startsWith("br::")) name = name.right(name.size()-4);
 
-    first_available_property_idx = metaObject()->propertyCount();
+    firstAvailablePropertyIdx = metaObject()->propertyCount();
 
     const QMetaObject * baseClass = metaObject();
     const QMetaObject * superClass = metaObject()->superClass();
@@ -726,7 +726,7 @@ void Object::init(const File &file_)
         // baseClass <- something <- br::Object
         // baseClass is the highest class whose properties we can set via positional arguments
         if (nextClass && !strcmp(nextClass->className(),"br::Object")) {
-            first_available_property_idx = baseClass->propertyOffset();
+            firstAvailablePropertyIdx = baseClass->propertyOffset();
         }
 
         QString superClassName = superClass->className();
@@ -757,7 +757,7 @@ void Object::init(const File &file_)
 
         if (key.startsWith(("_Arg"))) {
             int argument_number =  key.mid(4).toInt();
-            int target_idx = argument_number + first_available_property_idx;
+            int target_idx = argument_number + firstAvailablePropertyIdx;
 
             if (target_idx >= metaObject()->propertyCount()) {
                 qWarning("too many arguments for transform, ignoring %s\n", qPrintable(value));
diff --git a/sdk/openbr_plugin.h b/sdk/openbr_plugin.h
index 6b040b7..16fa3bc 100644
--- a/sdk/openbr_plugin.h
+++ b/sdk/openbr_plugin.h
@@ -422,7 +422,7 @@ class BR_EXPORT Object : public QObject
     Q_OBJECT
 
     // Index of the first property that can be set via command line arguments
-    int first_available_property_idx;
+    int firstAvailablePropertyIdx;
 
 public:
     File file; /*!< \brief The file used to construct the plugin. */
@@ -1159,16 +1159,16 @@ public:
 
     bool timeVarying() const
     {
-        return time_varying;
+        return isTimeVarying;
     }
 
     void init()
     {
-        time_varying = false;
+        isTimeVarying = false;
         foreach(const br::Transform * transform, transforms)
         {
             if (transform->timeVarying()) {
-                time_varying = true;
+                isTimeVarying = true;
                 break;
             }
         }
@@ -1176,7 +1176,7 @@ public:
 
 
 protected:
-    bool time_varying;
+    bool isTimeVarying;
 
     virtual void _project(const Template & src, Template & dst) const = 0;
     virtual void _project(const TemplateList & src, TemplateList & dst) const = 0;