diff --git a/examples/41-tess/cs_terrain_lod.sc b/examples/41-tess/cs_terrain_lod.sc
index 29fe9ed8d..eb6b24f28 100644
--- a/examples/41-tess/cs_terrain_lod.sc
+++ b/examples/41-tess/cs_terrain_lod.sc
@@ -54,7 +54,7 @@ void main()
 	}
 	else
 	{
-		targetLod = parentLod = findMSB(key);
+		targetLod = parentLod = findMSB_(key);
 	}
 
 	updateSubdBuffer(primID, key, targetLod, parentLod);
diff --git a/examples/41-tess/isubd.sh b/examples/41-tess/isubd.sh
index d022c2653..32100b53a 100644
--- a/examples/41-tess/isubd.sh
+++ b/examples/41-tess/isubd.sh
@@ -1,4 +1,4 @@
-uint findMSB(uint x)
+uint findMSB_(uint x)
 {
 	uint i;
 	uint mask;
@@ -36,7 +36,7 @@ bool isRootKey(in uint key)
 
 bool isLeafKey(in uint key)
 {
-	return findMSB(key) == 31;
+	return findMSB_(key) == 31;
 }
 
 bool isChildZeroKey(in uint key)
diff --git a/examples/41-tess/terrain_common.sh b/examples/41-tess/terrain_common.sh
index 7f6773c1c..f7d0e3e8b 100644
--- a/examples/41-tess/terrain_common.sh
+++ b/examples/41-tess/terrain_common.sh
@@ -64,7 +64,7 @@ void updateSubdBuffer(
 	)
 {
 	// extract subdivision level associated to the key
-	uint keyLod = findMSB(key);
+	uint keyLod = findMSB_(key);
 
 	// update the key accordingly
 	if (/* subdivide ? */ keyLod < targetLod && !isLeafKey(key) && isVisible)