diff --git a/notebooks/kernel_example.ipynb b/notebooks/kernel_example.ipynb
index e1f25e8..f6860be 100644
--- a/notebooks/kernel_example.ipynb
+++ b/notebooks/kernel_example.ipynb
@@ -82,7 +82,7 @@
    ],
    "source": [
     "plummer = kernel.factory(name='EllipticalPlummer',lon=0,lat=0,r_h=0.1,ellipticity=0.5, position_angle=45)\n",
-    "print plummer"
+    "print(plummer)"
    ]
   },
   {
@@ -227,9 +227,9 @@
     "# `extension` member, though the meaning of `extension` is \n",
     "# different for each kernel type\n",
     "\n",
-    "print plummer\n",
-    "print king\n",
-    "print exponential"
+    "print(plummer)\n",
+    "print(king)\n",
+    "print(exponential)"
    ]
   },
   {
@@ -317,7 +317,7 @@
     "ker.extension = 0.2\n",
     "ker.r_h = 0.2 \n",
     "\n",
-    "print ker"
+    "print(ker)"
    ]
   },
   {
@@ -340,7 +340,7 @@
     "try:\n",
     "    ker.r_h = 40\n",
     "except ValueError as e:\n",
-    "    print \"Error:\",e\n"
+    "    print(\"Error:\",e)\n"
    ]
   },
   {