diff --git a/libs/surfaceflinger/LayerBase.cpp b/libs/surfaceflinger/LayerBase.cpp
index ebce711..76733a9 100644
--- a/libs/surfaceflinger/LayerBase.cpp
+++ b/libs/surfaceflinger/LayerBase.cpp
@@ -338,13 +338,13 @@
     */
 }
 
-void LayerBase::clearWithOpenGL(const Region& clip, GLclampx red,
-                                GLclampx green, GLclampx blue,
-                                GLclampx alpha) const
+void LayerBase::clearWithOpenGL(const Region& clip, GLclampf red,
+                                GLclampf green, GLclampf blue,
+                                GLclampf alpha) const
 {
     const DisplayHardware& hw(graphicPlane(0).displayHardware());
     const uint32_t fbHeight = hw.getHeight();
-    glColor4x(red,green,blue,alpha);
+    glColor4f(red,green,blue,alpha);
     glDisable(GL_TEXTURE_2D);
     glDisable(GL_BLEND);
     glDisable(GL_DITHER);
diff --git a/libs/surfaceflinger/LayerBase.h b/libs/surfaceflinger/LayerBase.h
index 9129e80..a78424e 100644
--- a/libs/surfaceflinger/LayerBase.h
+++ b/libs/surfaceflinger/LayerBase.h
@@ -222,8 +222,8 @@
     const GraphicPlane& graphicPlane(int dpy) const;
           GraphicPlane& graphicPlane(int dpy);
 
-          void clearWithOpenGL(const Region& clip, GLclampx r, GLclampx g,
-                               GLclampx b, GLclampx alpha) const;
+          void clearWithOpenGL(const Region& clip, GLclampf r, GLclampf g,
+                               GLclampf b, GLclampf alpha) const;
           void clearWithOpenGL(const Region& clip) const;
           void drawWithOpenGL(const Region& clip, const Texture& texture) const;
           
diff --git a/libs/surfaceflinger/LayerBuffer.cpp b/libs/surfaceflinger/LayerBuffer.cpp
index 740b8cd..8a582da 100644
--- a/libs/surfaceflinger/LayerBuffer.cpp
+++ b/libs/surfaceflinger/LayerBuffer.cpp
@@ -622,9 +622,9 @@
 void LayerBuffer::OverlaySource::onDraw(const Region& clip) const
 {
     // this would be where the color-key would be set, should we need it.
-    GLclampx red = 0;
-    GLclampx green = 0;
-    GLclampx blue = 0;
+    GLclampf red = 0;
+    GLclampf green = 0;
+    GLclampf blue = 0;
     mLayer.clearWithOpenGL(clip, red, green, blue, 0);
 }