diff --git a/_sources/installation.txt b/_sources/installation.txt
index 6e78fde3c81..7c59aee8ebd 100644
--- a/_sources/installation.txt
+++ b/_sources/installation.txt
@@ -98,7 +98,11 @@ of the parameters you can copy / paste in that configuration module: ::
     # Your App secret key
     SECRET_KEY = '\2\1thisismyscretkey\1\2\e\y\y\h'
 
-    # The SQLAlchemy connection string.
+    # The SQLAlchemy connection string to your database backend
+    # This connection defines the path to the database that stores your
+    # caravel metadata (slices, connections, tables, dashboards, ...).
+    # Note that the connection information to connect to the datasources
+    # you want to explore are managed directly in the web UI
     SQLALCHEMY_DATABASE_URI = 'sqlite:////tmp/caravel.db'
 
     # Flask-WTF flag for CSRF
diff --git a/installation.html b/installation.html
index c7652e115e3..2e76d691357 100644
--- a/installation.html
+++ b/installation.html
@@ -211,7 +211,11 @@ of the parameters you can copy / paste in that configuration module:</p>
 <span class="c1"># Your App secret key</span>
 <span class="n">SECRET_KEY</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="se">\2\1</span><span class="s1">thisismyscretkey</span><span class="se">\1\2</span><span class="s1">\e\y\y\h&#39;</span>
 
-<span class="c1"># The SQLAlchemy connection string.</span>
+<span class="c1"># The SQLAlchemy connection string to your database backend</span>
+<span class="c1"># This connection defines the path to the database that stores your</span>
+<span class="c1"># caravel metadata (slices, connections, tables, dashboards, ...).</span>
+<span class="c1"># Note that the connection information to connect to the datasources</span>
+<span class="c1"># you want to explore are managed directly in the web UI</span>
 <span class="n">SQLALCHEMY_DATABASE_URI</span> <span class="o">=</span> <span class="s1">&#39;sqlite:////tmp/caravel.db&#39;</span>
 
 <span class="c1"># Flask-WTF flag for CSRF</span>
diff --git a/searchindex.js b/searchindex.js
index f21cf21628a..1dbeeef6164 100644
--- a/searchindex.js
+++ b/searchindex.js
@@ -1 +1 @@
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\ No newline at end of file
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\ No newline at end of file