diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7e2acb..a1605a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 ## Unreleased
+* Fix display of duration_calculated, display durations less than a minute
 * Make the "Finish now?" button on session list work
 * Hide navigation bar items if there are no games/purchases/sessions
 * Set default version to "git-main" to indicate development environment
diff --git a/Dockerfile b/Dockerfile
index 5b2f517..e3c0c84 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,5 +12,5 @@ COPY entrypoint.sh /
 RUN chmod +x /entrypoint.sh
 USER timetracker
 EXPOSE 8000
-ENV VERSION_NUMBER 0.1.0-14-g61d2e65
+ENV VERSION_NUMBER 0.1.0-15-g6fe960b
 ENTRYPOINT [ "/entrypoint.sh" ]
\ No newline at end of file
diff --git a/src/web/tracker/models.py b/src/web/tracker/models.py
index a129c72..3e1692c 100644
--- a/src/web/tracker/models.py
+++ b/src/web/tracker/models.py
@@ -60,10 +60,13 @@ class Session(models.Model):
         if seconds == 0:
             return seconds
         hours, remainder = divmod(seconds, 3600)
-        minutes = remainder % 60
-        hour_string = f"{int(hours)}h" if hours != 0 else ""
-        minute_string = f"{int(minutes)}m" if minutes != 0 else ""
-        return f"{hour_string}{minute_string}"
+        minutes = remainder // 60
+        if hours == 0 and minutes == 0:
+            return "less than a minute"
+        else:
+            hour_string = f"{int(hours)}h" if hours != 0 else ""
+            minute_string = f"{int(minutes)}m" if minutes != 0 else ""
+            return f"{hour_string}{minute_string}"
 
     def duration_any(self):
         return (