diff --git a/srcgl/gtkglc/gl.d b/srcgl/gtkglc/gl.d
index edad87e..32fc896 100644
--- a/srcgl/gtkglc/gl.d
+++ b/srcgl/gtkglc/gl.d
@@ -1189,7 +1189,7 @@ extern(C)
 	
 	void  glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
 	
-	void  glAlphaFunc(GLenum func, GLclampf ref);
+	void  glAlphaFunc(GLenum func, GLclampf ref_);
 	
 	void  glBlendFunc(GLenum sfactor, GLenum dfactor);
 	
@@ -1623,7 +1623,7 @@ extern(C)
 	 * Stenciling
 	 */
 	
-	void  glStencilFunc(GLenum func, GLint ref, GLuint mask);
+	void  glStencilFunc(GLenum func, GLint ref_, GLuint mask);
 	
 	void  glStencilMask(GLuint mask);