diff --git a/lib/entry/libimagentrydatetime/Cargo.toml b/lib/entry/libimagentrydatetime/Cargo.toml
index 726882c4..b3185036 100644
--- a/lib/entry/libimagentrydatetime/Cargo.toml
+++ b/lib/entry/libimagentrydatetime/Cargo.toml
@@ -22,7 +22,6 @@ maintenance                       = { status     = "actively-developed" }
 [dependencies]
 chrono = "0.4"
 toml-query = "0.8"
-lazy_static = "1.2"
 toml = "0.4"
 failure = "0.1"
 
diff --git a/lib/entry/libimagentrydatetime/src/datetime.rs b/lib/entry/libimagentrydatetime/src/datetime.rs
index d7fcb828..17bbdaa0 100644
--- a/lib/entry/libimagentrydatetime/src/datetime.rs
+++ b/lib/entry/libimagentrydatetime/src/datetime.rs
@@ -44,12 +44,10 @@ pub trait EntryDate {
 
 }
 
-lazy_static! {
-    static ref DATE_HEADER_LOCATION : &'static str              = "datetime.value";
-    static ref DATE_RANGE_START_HEADER_LOCATION : &'static str  = "datetime.range.start";
-    static ref DATE_RANGE_END_HEADER_LOCATION : &'static str    = "datetime.range.end";
-    static ref DATE_FMT : &'static str                          = "%Y-%m-%dT%H:%M:%S";
-}
+const DATE_HEADER_LOCATION : &'static str              = "datetime.value";
+const DATE_RANGE_START_HEADER_LOCATION : &'static str  = "datetime.range.start";
+const DATE_RANGE_END_HEADER_LOCATION : &'static str    = "datetime.range.end";
+const DATE_FMT : &'static str                          = "%Y-%m-%dT%H:%M:%S";
 
 impl EntryDate for Entry {
 
@@ -93,7 +91,7 @@ impl EntryDate for Entry {
         self.get_header_mut()
             .insert(&DATE_HEADER_LOCATION, Value::String(date))
             .context(format_err!("Failed to insert header '{}' in '{}'",
-                                 *DATE_HEADER_LOCATION,
+                                 DATE_HEADER_LOCATION,
                                  self.get_location()))
             .map_err(Error::from)
             .map(|opt| opt.map(|stri| {
diff --git a/lib/entry/libimagentrydatetime/src/lib.rs b/lib/entry/libimagentrydatetime/src/lib.rs
index 3e16e031..2c7e17e1 100644
--- a/lib/entry/libimagentrydatetime/src/lib.rs
+++ b/lib/entry/libimagentrydatetime/src/lib.rs
@@ -37,7 +37,6 @@
     while_true,
 )]
 
-#[macro_use] extern crate lazy_static;
 #[macro_use] extern crate failure;
 extern crate chrono;
 extern crate toml_query;