diff --git a/algo/plot.go b/algo/plot.go
index ede1ee6..20b4e79 100644
--- a/algo/plot.go
+++ b/algo/plot.go
@@ -109,8 +109,8 @@ func plotAllDims(algoStats []stats.Stats, fPrefix, fExt string, ch chan report.P
 		p.Title.Text = "D: " + fmt.Sprint(s.Dimens) +
 			", G: " + fmt.Sprint(s.Generations) +
 			", I: " + fmt.Sprint(s.Iterations)
-		// pic.Caption = p.Title.Text
-		pic.Caption = ""
+		// this is latex-rendered.
+		pic.Caption = strings.ReplaceAll(p.Title.Text, " ", "~")
 
 		// since a single stat slice of algoStats only contains results of a
 		// single bench func, it's safe to set the value like this.