diff --git a/datafusion-examples/examples/regex_count.rs b/datafusion-examples/examples/regex_count.rs
deleted file mode 100644
index 93ec705ff6cc..000000000000
--- a/datafusion-examples/examples/regex_count.rs
+++ /dev/null
@@ -1,33 +0,0 @@
-use datafusion::common::Result;
-use datafusion::prelude::{CsvReadOptions, SessionContext};
-
-#[tokio::main]
-async fn main() -> Result<()> {
-    let ctx = SessionContext::new();
-    ctx.register_csv(
-        "examples",
-        "../../datafusion/physical-expr/tests/data/regex.csv",
-        CsvReadOptions::new(),
-    )
-    .await?;
-
-    //
-    //
-    //regexp_count examples
-    //
-    //
-    // regexp_count format is (regexp_count(text, regex[, flags])
-    //
-
-    // use sql and regexp_count function to test col 'values', against patterns in col 'patterns' without flags
-    let result = ctx
-        .sql("select regexp_count(values, patterns) from examples")
-        .await?
-        .collect()
-        .await?;
-
-    println!("{:?}", result);
-    assert_eq!(result.len(), 1);
-
-    Ok(())
-}
diff --git a/datafusion/functions/Cargo.toml b/datafusion/functions/Cargo.toml
index 337379a74670..c793b8e6464e 100644
--- a/datafusion/functions/Cargo.toml
+++ b/datafusion/functions/Cargo.toml
@@ -52,7 +52,7 @@ encoding_expressions = ["base64", "hex"]
 # enable math functions
 math_expressions = []
 # enable regular expressions
-regex_expressions = ["regex"]
+regex_expressions = ["regex", "string_expressions"]
 # enable string functions
 string_expressions = ["uuid"]
 # enable unicode functions