diff --git a/tutorials/tutorial6/tutorial.ipynb b/tutorials/tutorial6/tutorial.ipynb
index 522a9087f..6d5e242f7 100644
--- a/tutorials/tutorial6/tutorial.ipynb
+++ b/tutorials/tutorial6/tutorial.ipynb
@@ -32,7 +32,7 @@
     "except:\n",
     "    IN_COLAB = False\n",
     "if IN_COLAB:\n",
-    "    !pip install \"pina-mathlab\"\n",
+    "    !pip install pina-mathlab\n",
     "\n",
     "import matplotlib.pyplot as plt\n",
     "\n",