diff --git a/expreduce/resources.go b/expreduce/resources.go
index 0d690f4..d0010c9 100644
--- a/expreduce/resources.go
+++ b/expreduce/resources.go
@@ -4376,7 +4376,7 @@ ExpreduceFactorConstant[p_Plus] := Module[{e = p, cTerms, c},
 ExpreduceFactorConstant[e_] := e;
 Attributes[ExpreduceFactorConstant] = {Protected};
 
-Varibles::usage = "`+"`"+`Variables[expr]`+"`"+` returns the variables in `+"`"+`expr`+"`"+`.";
+Variables::usage = "`+"`"+`Variables[expr]`+"`"+` returns the variables in `+"`"+`expr`+"`"+`.";
 Variables[s_Symbol] := {s};
 Variables[s_^p_Integer] := Variables[s];
 Variables[s_^p_Rational] := Variables[s];