diff --git a/Cargo.toml b/Cargo.toml
index 66fb131d..e78d5063 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,6 +32,7 @@ keywords = ["database"]
 [features]
 default = ["linkage"]
 bundled = ["sqlite3-sys/bundled"]
+extension = []
 linkage = ["sqlite3-sys/linkage"]
 
 [dependencies]
diff --git a/src/connection.rs b/src/connection.rs
index 146f8065..1462bc8a 100644
--- a/src/connection.rs
+++ b/src/connection.rs
@@ -183,6 +183,7 @@ impl Connection {
     }
 
     /// Enable loading extensions.
+    #[cfg(feature = "extension")]
     #[inline]
     pub fn enable_extension(&self) -> Result<()> {
         unsafe {
@@ -195,6 +196,7 @@ impl Connection {
     }
 
     /// Disable loading extensions.
+    #[cfg(feature = "extension")]
     #[inline]
     pub fn disable_extension(&self) -> Result<()> {
         unsafe {
@@ -207,6 +209,7 @@ impl Connection {
     }
 
     /// Load an extension.
+    #[cfg(feature = "extension")]
     #[inline]
     pub fn load_extension<T: AsRef<str>>(&self, name: T) -> Result<()> {
         unsafe {
diff --git a/tests/connection.rs b/tests/connection.rs
index 15ff4abe..53a6a8f6 100644
--- a/tests/connection.rs
+++ b/tests/connection.rs
@@ -114,18 +114,21 @@ fn set_busy_handler() {
     }
 }
 
+#[cfg(feature = "extension")]
 #[test]
 fn enable_extension() {
     let connection = ok!(Connection::open(":memory:"));
     ok!(connection.enable_extension());
 }
 
+#[cfg(feature = "extension")]
 #[test]
 fn disable_extension() {
     let connection = ok!(Connection::open(":memory:"));
     ok!(connection.disable_extension());
 }
 
+#[cfg(feature = "extension")]
 #[test]
 fn load_extension() {
     let connection = ok!(Connection::open(":memory:"));