diff --git a/libsql-ffi/Cargo.toml b/libsql-ffi/Cargo.toml
index f769cacf1c..ad78acafe1 100644
--- a/libsql-ffi/Cargo.toml
+++ b/libsql-ffi/Cargo.toml
@@ -40,6 +40,7 @@ sqlean-extension-fuzzy = []
 sqlean-extension-math = []
 sqlean-extension-stats = []
 sqlean-extension-text = []
+sqlean-extension-regexp = []
 sqlean-extensions = [
   "sqlean-extension-uuid",
   "sqlean-extension-crypto",
@@ -47,6 +48,7 @@ sqlean-extensions = [
   "sqlean-extension-math",
   "sqlean-extension-stats",
   "sqlean-extension-text",
+  "sqlean-extension-regexp",
 ]
 libsql-disable-checkpoint-downgrade = []
 libsql-checkpoint-only-full= []
diff --git a/libsql-ffi/build.rs b/libsql-ffi/build.rs
index c3c5beb0c4..dc599b48a9 100644
--- a/libsql-ffi/build.rs
+++ b/libsql-ffi/build.rs
@@ -252,6 +252,13 @@ pub fn build_bundled(out_dir: &str, out_path: &Path) {
         sqlean_patterns.push("uuid/*.c");
     }
 
+    if cfg!(feature = "sqlean-extension-regexp") {
+        enabled_extensions.push("regexp");
+        sqlean_patterns.push("regexp/*.c");
+        sqlean_patterns.push("regexp/pcre2/pcre2_internal.h");
+        sqlean_patterns.push("regexp/pcre2/*.c");
+    }
+
     if sqlean_patterns.is_empty() {
         cfg.file(format!("{BUNDLED_DIR}/src/sqlite3.c"));
     } else {
@@ -263,6 +270,12 @@ pub fn build_bundled(out_dir: &str, out_path: &Path) {
             sqlean_sources.extend(glob(&full_pattern).unwrap().filter_map(Result::ok));
         }
 
+        if cfg!(feature = "sqlean-extension-regexp") {
+            // PCRE2 needs some macroses defined externally in constants.h file
+            cfg.flag("-include")
+                .flag(format!("{BUNDLED_DIR}/sqlean/regexp/constants.h"));
+        }
+
         cfg.files(sqlean_sources);
 
         let sqlean = Path::new(&env::var("OUT_DIR").unwrap()).join("sqlite3-sqlean-generated.c");
diff --git a/libsql-sys/Cargo.toml b/libsql-sys/Cargo.toml
index 69839292d2..24d2e1465b 100644
--- a/libsql-sys/Cargo.toml
+++ b/libsql-sys/Cargo.toml
@@ -31,4 +31,5 @@ sqlean-extension-fuzzy = ["libsql-ffi/sqlean-extension-fuzzy"]
 sqlean-extension-math = ["libsql-ffi/sqlean-extension-math"]
 sqlean-extension-stats = ["libsql-ffi/sqlean-extension-stats"]
 sqlean-extension-text = ["libsql-ffi/sqlean-extension-text"]
+sqlean-extension-regexp = ["libsql-ffi/sqlean-extension-regexp"]
 sqlean-extensions = ["libsql-ffi/sqlean-extensions"]