diff --git a/src/osgText/Text.cpp b/src/osgText/Text.cpp
index 6a2d2f96c..e271e3460 100644
--- a/src/osgText/Text.cpp
+++ b/src/osgText/Text.cpp
@@ -157,7 +157,7 @@ osg::StateSet* Text::createStateSet()
 
     if (_shaderTechnique>GREYSCALE)
     {
-        defineList["SIGNED_DISTNACE_FIELD"] = osg::StateSet::DefinePair("1", osg::StateAttribute::ON);
+        defineList["SIGNED_DISTANCE_FIELD"] = osg::StateSet::DefinePair("1", osg::StateAttribute::ON);
     }
 
 #if 0
diff --git a/src/osgText/shaders/text_frag.cpp b/src/osgText/shaders/text_frag.cpp
index 02c253100..4687a6bb6 100644
--- a/src/osgText/shaders/text_frag.cpp
+++ b/src/osgText/shaders/text_frag.cpp
@@ -1,11 +1,11 @@
 char text_frag[] = "$OSG_GLSL_VERSION\n"
                    "\n"
-                   "#pragma import_defines( BACKDROP_COLOR, SHADOW, OUTLINE, SIGNED_DISTNACE_FIELD, TEXTURE_DIMENSION, GLYPH_DIMENSION)\n"
+                   "#pragma import_defines( BACKDROP_COLOR, SHADOW, OUTLINE, SIGNED_DISTANCE_FIELD, TEXTURE_DIMENSION, GLYPH_DIMENSION)\n"
                    "\n"
                    "#ifdef GL_ES\n"
                    "    #extension GL_OES_standard_derivatives : enable\n"
                    "    #ifndef GL_OES_standard_derivatives\n"
-                   "        #undef SIGNED_DISTNACE_FIELD\n"
+                   "        #undef SIGNED_DISTANCE_FIELD\n"
                    "    #endif\n"
                    "#endif\n"
                    "\n"
@@ -55,7 +55,7 @@ char text_frag[] = "$OSG_GLSL_VERSION\n"
                    "const float GLYPH_DIMENSION = 32.0;\n"
                    "#endif\n"
                    "\n"
-                   "#ifdef SIGNED_DISTNACE_FIELD\n"
+                   "#ifdef SIGNED_DISTANCE_FIELD\n"
                    "\n"
                    "float distanceFromEdge(vec2 tc)\n"
                    "{\n"