diff --git a/milli/src/search/facet/grammar.pest b/milli/src/search/facet/grammar.pest
deleted file mode 100644
index 8bfdeb667..000000000
--- a/milli/src/search/facet/grammar.pest
+++ /dev/null
@@ -1,33 +0,0 @@
-key = _{reserved | quoted | word }
-value = _{quoted | word }
-quoted = _{ (PUSH("'") | PUSH("\"")) ~ string ~ POP  }
-string = {char*}
-word = ${(LETTER | NUMBER | "_" | "-" | ".")+}
-
-char =  _{ !(PEEK | "\\") ~ ANY
-    | "\\" ~ (PEEK | "\\" | "/" | "b" | "f" | "n" | "r" | "t")
-    | "\\" ~ ("u" ~ ASCII_HEX_DIGIT{4})}
-
-reserved = { "_geoDistance" | ("_geoPoint" ~ parameters) | "_geo" }
-// we deliberately choose to allow empty parameters to generate more specific error message later
-parameters = {("(" ~ (value ~ ",")* ~ value? ~ ")") | ""}
-condition = _{between | eq | greater | less | geq | leq | neq}
-between = {key ~ value ~ "TO" ~ value}
-geq = {key ~ ">=" ~ value}
-leq = {key ~ "<=" ~ value}
-neq = {key ~ "!=" ~ value}
-eq = {key ~ "=" ~ value}
-greater = {key ~ ">" ~ value}
-less = {key ~ "<" ~ value}
-geo_radius = {"_geoRadius" ~ parameters }
-
-prgm = {SOI ~ expr ~ EOI}
-expr = _{ ( term ~ (operation ~ term)* ) }
-term = { ("(" ~ expr ~ ")") | condition | not | geo_radius }
-operation = _{ and | or }
-and = {"AND"}
-or = {"OR"}
-
-not = {"NOT" ~ term}
-
-WHITESPACE = _{ " " }