diff --git a/src/resume.typ b/src/resume.typ
index f12a8bc..871f5e0 100644
--- a/src/resume.typ
+++ b/src/resume.typ
@@ -129,14 +129,10 @@
 }
 
 // Converts datetime format into readable period.
-#let period_worked(start-date, end-date) = {
+#let period_worked(start-date, end-date, present-label: "Present") = {
   // sanity checks
   assert.eq(type(start-date), datetime)
-  assert(type(end-date) == datetime or type(end-date) == str)
-
-  if type(end-date) == str and end-date == "Present" {
-    end-date = datetime.today()
-  }
+  assert.eq(type(end-date), datetime)
 
   return [
       #start-date.display("[month repr:short] [year]") -- 
@@ -144,7 +140,7 @@
         (end-date.month() == datetime.today().month()) and 
         (end-date.year() == datetime.today().year())
       ) [
-        Present
+        #present-label
       ] else [
         #end-date.display("[month repr:short] [year]")
       ]
@@ -152,14 +148,14 @@
 }
 
 // Pretty self-explanatory.
-#let work-heading(title, company, location, start-date, end-date, body) = {
+#let work-heading(title, company, location, start-date, end-date, present-label: "Present", body) = {
   // sanity checks
   assert.eq(type(start-date), datetime)
-  assert(type(end-date) == datetime or type(end-date) == str)
+  assert.eq(type(end-date), datetime)
 
   generic_2x2(
     (1fr, 1fr),
-    [*#title*], [*#period_worked(start-date, end-date)*], 
+    [*#title*], [*#period_worked(start-date, end-date, present-label: present-label)*], 
     [#company], emph(location)
   )
   v(-0.2em)
@@ -192,15 +188,15 @@
 }
 
 // Pretty self-explanatory.
-#let education-heading(institution, location, degree, major, start-date, end-date, body) = {
+#let education-heading(institution, location, degree, major, start-date, end-date, present-label: "Present", body) = {
   // sanity checks
   assert.eq(type(start-date), datetime)
-  assert(type(end-date) == datetime or type(end-date) == str)
+  assert.eq(type(end-date), datetime)
 
   generic_2x2(
     (70%, 30%),
     [*#institution*], [*#location*], 
-    [#degree, #major], period_worked(start-date, end-date)
+    [#degree, #major], period_worked(start-date, end-date, present-label: present-label)
   )
   v(-0.2em)
   if body != [] {