diff --git a/faup/src/grammar.pest b/faup/src/grammar.pest
index a16eb65..13b13b9 100644
--- a/faup/src/grammar.pest
+++ b/faup/src/grammar.pest
@@ -5,12 +5,14 @@ username = ${ (!(":" | "@" | WHITE_SPACE) ~ ANY)+ }
 password = ${ (!("@" | WHITE_SPACE) ~ ANY)+ }
 userinfo = ${ username ~ (":" ~ password)? ~ "@" }
 
-host        = ${ ipv4 | ipv6 | hostname }
+// this rule is used to check if the hostname is actually
+// a valid ipv4 address as hostname rule matches any ipv4
+ipv4        = ${ SOI ~ (ASCII_DIGIT{1, 3} ~ "."){3} ~ ASCII_DIGIT{1, 3} ~ EOI }
+host        = ${ ipv6 | hostname }
 domain_part = ${ (!(":" | "?" | "/" | "#" | "." | WHITE_SPACE) ~ ANY)+ }
 tld         = ${ (!(":" | "?" | "/" | "#" | WHITE_SPACE) ~ ANY)+ }
 hostname    = ${ (((domain_part ~ ".")+ ~ tld) | domain_part) }
 
-ipv4 = ${ (ASCII_DIGIT{1, 3} ~ "."){3} ~ ASCII_DIGIT{1, 3} }
 ipv6 = ${ "[" ~ (ASCII_HEX_DIGIT{,4} ~ ":"){2, 7} ~ ASCII_HEX_DIGIT{,4} ~ "]" }
 
 encoded_char = ${ "%" ~ ASCII_DIGIT{2} }
diff --git a/faup/src/lib.rs b/faup/src/lib.rs
index a23bd0e..69ed4ac 100644
--- a/faup/src/lib.rs
+++ b/faup/src/lib.rs
@@ -597,15 +597,18 @@ impl<'url> Url<'url> {
                     let host_pair = p.into_inner().next().unwrap();
                     match host_pair.as_rule() {
                         Rule::hostname => {
-                            host = Some(Host::Hostname(Hostname::from_str(host_pair.as_str())))
-                        }
-                        Rule::ipv4 => {
-                            host = Some(
-                                Ipv4Addr::from_str(host_pair.as_str())
-                                    .map(IpAddr::from)
-                                    .map(Host::Ip)
-                                    .map_err(|_| Error::InvalidIPv4)?,
-                            );
+                            if let Ok(ipv4) =
+                                UrlParser::parse(Rule::ipv4, host_pair.as_str()).map(|p| p.as_str())
+                            {
+                                host = Some(
+                                    Ipv4Addr::from_str(ipv4)
+                                        .map(IpAddr::from)
+                                        .map(Host::Ip)
+                                        .map_err(|_| Error::InvalidIPv4)?,
+                                );
+                            } else {
+                                host = Some(Host::Hostname(Hostname::from_str(host_pair.as_str())))
+                            }
                         }
 
                         Rule::ipv6 => {
@@ -984,6 +987,7 @@ mod tests {
             "http://full.custom-tld.test.b32.i2p",
             "https://alex:adore-la-quiche@avec-des-œufs.be#et-des-lardons",
             "https://%40lex:adore:la:quiche@%61vec-des-œufs.be/../../..some/directory/traversal/../#et-des-lardons",
+            "https://44.129.205.92.host.secureserver.net",
         ];
 
         for url in test_urls {