diff --git a/common/gl/yacreader_flow_gl.cpp b/common/gl/yacreader_flow_gl.cpp
index 57643c74..e468e531 100644
--- a/common/gl/yacreader_flow_gl.cpp
+++ b/common/gl/yacreader_flow_gl.cpp
@@ -190,7 +190,7 @@ struct Preset pressetYACReaderFlowDownConfig = {
 };
 /*Constructor*/
 YACReaderFlowGL::YACReaderFlowGL(QWidget *parent, struct Preset p)
-    : QOpenGLWidget(/*QOpenGLWidget migration QGLFormat(QGL::SampleBuffers),*/ parent), numObjects(0), lazyPopulateObjects(-1), defaultTexture(nullptr), hasBeenInitialized(false), bUseVSync(false), flowRightToLeft(false)
+    : QOpenGLWidget(/*QOpenGLWidget migration QGLFormat(QGL::SampleBuffers),*/ parent), numObjects(0), lazyPopulateObjects(-1), hasBeenInitialized(false), bUseVSync(false), flowRightToLeft(false)
 {
     updateCount = 0;
     config = p;
diff --git a/common/gl/yacreader_flow_gl.h b/common/gl/yacreader_flow_gl.h
index 6fc965a7..c47345d8 100644
--- a/common/gl/yacreader_flow_gl.h
+++ b/common/gl/yacreader_flow_gl.h
@@ -119,9 +119,9 @@ protected:
     int updateCount;
     int fontSize;
 
-    QOpenGLTexture *defaultTexture;
-    QOpenGLTexture *markTexture;
-    QOpenGLTexture *readingTexture;
+    QOpenGLTexture *defaultTexture = nullptr;
+    QOpenGLTexture *markTexture = nullptr;
+    QOpenGLTexture *readingTexture = nullptr;
     void initializeGL();
     void paintGL();
     void timerEvent(QTimerEvent *);