diff --git a/exercises/10_modules/modules1.rs b/exercises/10_modules/modules1.rs
index d97ab23a..65335ded 100644
--- a/exercises/10_modules/modules1.rs
+++ b/exercises/10_modules/modules1.rs
@@ -14,3 +14,13 @@ mod sausage_factory {
 fn main() {
     sausage_factory::make_sausage();
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_make_sausage() {
+        sausage_factory::make_sausage();
+    }
+}
diff --git a/rustlings-macros/info.toml b/rustlings-macros/info.toml
index e42b0f26..ba618d62 100644
--- a/rustlings-macros/info.toml
+++ b/rustlings-macros/info.toml
@@ -517,7 +517,7 @@ because "blue" is `&str`, not `String`."""
 [[exercises]]
 name = "modules1"
 dir = "10_modules"
-test = false
+test = true
 hint = """
 Everything is private in Rust by default. But there's a keyword we can use
 to make something public!"""
diff --git a/solutions/10_modules/modules1.rs b/solutions/10_modules/modules1.rs
index 873b4127..c9690549 100644
--- a/solutions/10_modules/modules1.rs
+++ b/solutions/10_modules/modules1.rs
@@ -13,3 +13,13 @@ mod sausage_factory {
 fn main() {
     sausage_factory::make_sausage();
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_make_sausage() {
+        sausage_factory::make_sausage();
+    }
+}