diff --git a/stepmania/src/RageDisplay_OGL_Helpers.cpp b/stepmania/src/RageDisplay_OGL_Helpers.cpp
index 146748f3c6..73925fd8ad 100644
--- a/stepmania/src/RageDisplay_OGL_Helpers.cpp
+++ b/stepmania/src/RageDisplay_OGL_Helpers.cpp
@@ -180,6 +180,8 @@ void GLExt_t::Load( LowLevelWindow *pWind )
 			F( glEnableVertexAttribArrayARB ),
 			F( glDisableVertexAttribArrayARB ),
 			F( glVertexAttribPointerARB ),
+			F( glGetUniformLocationARB ),
+			F( glUniform1iARB ),
 			{ NULL, NULL }
 		};
 
@@ -188,6 +190,7 @@ void GLExt_t::Load( LowLevelWindow *pWind )
 	}
 
 	m_bGL_ARB_vertex_shader = m_bGL_ARB_shader_objects && HasExtension("GL_ARB_vertex_shader");
+	m_bGL_ARB_fragment_shader = m_bGL_ARB_shader_objects && HasExtension("GL_ARB_fragment_shader");
 	if( m_bGL_ARB_vertex_shader )
 	{
 		func_t funcs[] =
diff --git a/stepmania/src/RageDisplay_OGL_Helpers.h b/stepmania/src/RageDisplay_OGL_Helpers.h
index 834aaab038..6d795c031c 100644
--- a/stepmania/src/RageDisplay_OGL_Helpers.h
+++ b/stepmania/src/RageDisplay_OGL_Helpers.h
@@ -98,9 +98,12 @@ struct GLExt_t
 	PFNGLENABLEVERTEXATTRIBARRAYARBPROC glEnableVertexAttribArrayARB;
 	PFNGLDISABLEVERTEXATTRIBARRAYARBPROC glDisableVertexAttribArrayARB;
 	PFNGLVERTEXATTRIBPOINTERARBPROC glVertexAttribPointerARB;
+	PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocationARB;
+	PFNGLUNIFORM1IARBPROC glUniform1iARB;
 
-	// GL_ARB_vertex_shader:
+	// GL_ARB_vertex_shader and GL_ARB_fragment_shader:
 	bool m_bGL_ARB_vertex_shader;
+	bool m_bGL_ARB_fragment_shader;
 	PFNGLBINDATTRIBLOCATIONARBPROC glBindAttribLocationARB;
 
 	bool m_bGL_ARB_shading_language_100;