diff --git a/src/Gnuplot.jl b/src/Gnuplot.jl
index 83c9092..c9fdba9 100644
--- a/src/Gnuplot.jl
+++ b/src/Gnuplot.jl
@@ -121,7 +121,7 @@ function parseKeywords(; kwargs...)
     ismissing(kw.xlabel ) || (push!(out, "set xlabel  \"" * kw.xlabel * "\""))
     ismissing(kw.ylabel ) || (push!(out, "set ylabel  \"" * kw.ylabel * "\""))
     ismissing(kw.zlabel ) || (push!(out, "set zlabel  \"" * kw.zlabel * "\""))
-    ismissing(kw.zlabel ) || (push!(out, "set cblabel \"" * kw.cblabel * "\""))
+    ismissing(kw.cblabel) || (push!(out, "set cblabel \"" * kw.cblabel * "\""))
     ismissing(kw.xlog   ) || (push!(out, (kw.xlog  ?  ""  :  "un") * "set logscale x"))
     ismissing(kw.ylog   ) || (push!(out, (kw.ylog  ?  ""  :  "un") * "set logscale y"))
     ismissing(kw.zlog   ) || (push!(out, (kw.zlog  ?  ""  :  "un") * "set logscale z"))