diff --git a/Cargo.toml b/Cargo.toml
index c177c22..80f0d4e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 
 [dependencies]
 libc = { version = "0.2", default-features = false }
-libc-print = "0.1.22"
+libc-print = "0.1.23"
 errno = { version = "*", default-features = false }
 
 [profile.dev]
diff --git a/src/tm.rs b/src/tm.rs
index 4641dab..efabf77 100644
--- a/src/tm.rs
+++ b/src/tm.rs
@@ -7,6 +7,7 @@ pub(crate) struct Timespec {
     pub(crate) ts: timespec,
 }
 
+#[cfg(test)]
 pub(crate) fn new_timespec() -> Timespec {
     Timespec {
         ts: timespec {
@@ -15,6 +16,7 @@ pub(crate) fn new_timespec() -> Timespec {
         },
     }
 }
+
 impl Sub<Timespec> for Timespec {
     type Output = Duration;