diff --git a/plugin/wakatime.vim b/plugin/wakatime.vim
index 4ada306..c21bf51 100644
--- a/plugin/wakatime.vim
+++ b/plugin/wakatime.vim
@@ -156,7 +156,7 @@ let s:VERSION = '0.2.2'
             let duration = round(duration / 60)
             let units = 'minute'
             if duration >= 60
-                let remainder = duration % 60
+                let remainder = float2nr(round(duration)) % 60
                 if remainder > 0
                     let minutes = printf(" and %f minute", remainder)
                     if remainder > 1