diff --git a/packages/squiggle-lang/src/rescript/Reducer/Reducer_Peggy/Reducer_Peggy_GeneratedParser.peggy b/packages/squiggle-lang/src/rescript/Reducer/Reducer_Peggy/Reducer_Peggy_GeneratedParser.peggy
index 8ed0cf52..a813dccb 100644
--- a/packages/squiggle-lang/src/rescript/Reducer/Reducer_Peggy/Reducer_Peggy_GeneratedParser.peggy
+++ b/packages/squiggle-lang/src/rescript/Reducer/Reducer_Peggy/Reducer_Peggy_GeneratedParser.peggy
@@ -268,7 +268,7 @@ identifier 'identifier'
   = ([_a-z]+[_a-z0-9]i*) {return nodeIdentifier(text())} 
 
 unitIdentifier 'identifier'
-  = ([_a-zA-Z]+[_a-z0-9]i*) {return nodeIdentifier(text())} 
+  = ([_a-df-zA-DF-Z]+[_a-z0-9]i*) {return nodeIdentifier(text())}
 
 dollarIdentifier '$identifier'
   = ([\$_a-z]+[\$_a-z0-9]i*) {return nodeIdentifier(text())} 
@@ -447,4 +447,4 @@ typeInParanthesis = '(' _nl typeExpression:typeExpression _nl ')' {return typeEx
 // TODO: Example of foo = {a: 2, b: 5}; type fooKeys = string $ memberOf(foo->keys)
 // TODO: Example of memberOf( [1,2,3] )
 // TODO: Example of $ 
-// TODO: Cons(a, list) | EmptyList
\ No newline at end of file
+// TODO: Cons(a, list) | EmptyList
diff --git a/packages/squiggle-lang/src/rescript/ReducerInterface/ReducerInterface_Number.res b/packages/squiggle-lang/src/rescript/ReducerInterface/ReducerInterface_Number.res
index 5cef930e..cf8ff043 100644
--- a/packages/squiggle-lang/src/rescript/ReducerInterface/ReducerInterface_Number.res
+++ b/packages/squiggle-lang/src/rescript/ReducerInterface/ReducerInterface_Number.res
@@ -16,7 +16,7 @@ module ScientificUnit = {
     }
 
   let getMultiplier = (r: string) => {
-    let match = Js.String2.match_(r, %re(`/fromUnit_([_a-zA-Z]*)/`))
+    let match = Js.String2.match_(r, %re(`/fromUnit_([a-zA-Z]*)/`))
     switch match {
     | Some([_, unit]) => nameToMultiplier(unit)
     | _ => None