diff --git a/rowers/templates/instroke_interactive.html b/rowers/templates/instroke_interactive.html
index cad3bd0e..79f15834 100644
--- a/rowers/templates/instroke_interactive.html
+++ b/rowers/templates/instroke_interactive.html
@@ -62,6 +62,7 @@ $( function() {
     range: true,
     min: 0,
     max: 60,
+    step: 0.1,
     values: [ {{ spm_min }}, {{ spm_max }} ],
     slide: function( event, ui ) {
       $( "#amountspm" ).val(ui.values[ 0 ] + "  - " + ui.values[ 1 ] );