diff --git a/Demo/sgi/gl/backface.py b/Demo/sgi/gl/backface.py
index 594b8ad..39929be 100755
--- a/Demo/sgi/gl/backface.py
+++ b/Demo/sgi/gl/backface.py
@@ -1,4 +1,4 @@
-#! /usr/local/python
+#! /usr/local/bin/python
 
 #   backface
 #
diff --git a/Demo/sgi/gl/kites.py b/Demo/sgi/gl/kites.py
index d986833..6e3dea6 100755
--- a/Demo/sgi/gl/kites.py
+++ b/Demo/sgi/gl/kites.py
@@ -1,4 +1,4 @@
-#! /usr/local/python
+#! /usr/local/bin/python
 
 # *** This only works correctly on a 24 bit-plane machine. ***
 #
diff --git a/Demo/sgi/gl/mixing.py b/Demo/sgi/gl/mixing.py
index d6b9ecf..57dea9c 100755
--- a/Demo/sgi/gl/mixing.py
+++ b/Demo/sgi/gl/mixing.py
@@ -1,4 +1,4 @@
-#! /usr/local/python
+#! /usr/local/bin/python
 
 # Use Gouraud shading to mix colors.  Requires Z-buffer.
 # It changes the color assignments so fast that you see white.
diff --git a/Demo/sgi/gl/nurbs.py b/Demo/sgi/gl/nurbs.py
index fb76aa9..af2039b 100755
--- a/Demo/sgi/gl/nurbs.py
+++ b/Demo/sgi/gl/nurbs.py
@@ -1,4 +1,4 @@
-#! /usr/local/python
+#! /usr/local/bin/python
 
 # Rotate a 3D surface created using NURBS.
 #
diff --git a/Demo/sgi/gl/zrgb.py b/Demo/sgi/gl/zrgb.py
index fa01840..6561e11 100755
--- a/Demo/sgi/gl/zrgb.py
+++ b/Demo/sgi/gl/zrgb.py
@@ -1,4 +1,4 @@
-#! /usr/local/python
+#! /usr/local/bin/python
 
 #   zrgb  (Requires Z buffer.)
 #