diff --git a/tests/regex.rs b/tests/regex.rs
index e8ecf44..5f83eb3 100644
--- a/tests/regex.rs
+++ b/tests/regex.rs
@@ -1,3 +1,4 @@
+#![cfg(not(tarpaulin_include))]
 #![cfg(feature = "regex_support")]
 
 use evalexpr::*;
diff --git a/tests/serde.rs b/tests/serde.rs
index 12ed4e8..9ad9603 100644
--- a/tests/serde.rs
+++ b/tests/serde.rs
@@ -1,3 +1,4 @@
+#![cfg(not(tarpaulin_include))]
 #![cfg(feature = "serde")]
 
 use evalexpr::{build_operator_tree, Node};