diff --git a/src/osgText/Glyph.cpp b/src/osgText/Glyph.cpp
index 7c1dba18a..ed8c7120b 100644
--- a/src/osgText/Glyph.cpp
+++ b/src/osgText/Glyph.cpp
@@ -56,6 +56,7 @@ using namespace std;
 // GlyphTexture
 //
 GlyphTexture::GlyphTexture():
+    _shaderTechnique(GREYSCALE),
     _usedY(0),
     _partUsedX(0),
     _partUsedY(0)