diff --git a/parsers/src/iq.rs b/parsers/src/iq.rs
index 4e63649b..ccd55972 100644
--- a/parsers/src/iq.rs
+++ b/parsers/src/iq.rs
@@ -240,8 +240,8 @@ mod tests {
     #[cfg(target_pointer_width = "64")]
     #[test]
     fn test_size() {
-        assert_size!(IqType, 240);
-        assert_size!(Iq, 424);
+        assert_size!(IqType, 232);
+        assert_size!(Iq, 416);
     }
 
     #[test]
diff --git a/parsers/src/jingle.rs b/parsers/src/jingle.rs
index 1a96469d..584abfbb 100644
--- a/parsers/src/jingle.rs
+++ b/parsers/src/jingle.rs
@@ -704,7 +704,7 @@ mod tests {
         assert_size!(Senders, 1);
         assert_size!(Disposition, 1);
         assert_size!(ContentId, 24);
-        assert_size!(Content, 456);
+        assert_size!(Content, 448);
         assert_size!(Reason, 1);
         assert_size!(ReasonElement, 32);
         assert_size!(SessionId, 24);
diff --git a/parsers/src/jingle_raw_udp.rs b/parsers/src/jingle_raw_udp.rs
index 1e9202c7..b2624bfd 100644
--- a/parsers/src/jingle_raw_udp.rs
+++ b/parsers/src/jingle_raw_udp.rs
@@ -73,7 +73,7 @@ mod tests {
     #[test]
     fn test_size() {
         assert_size!(Transport, 24);
-        assert_size!(Candidate, 56);
+        assert_size!(Candidate, 48);
     }
 
     #[test]
diff --git a/parsers/src/rtt.rs b/parsers/src/rtt.rs
index 881351fd..6eb24eae 100644
--- a/parsers/src/rtt.rs
+++ b/parsers/src/rtt.rs
@@ -265,7 +265,7 @@ mod tests {
         assert_size!(Insert, 32);
         assert_size!(Erase, 12);
         assert_size!(Wait, 4);
-        assert_size!(Action, 40);
+        assert_size!(Action, 32);
         assert_size!(Rtt, 56);
     }
 
diff --git a/parsers/src/xhtml.rs b/parsers/src/xhtml.rs
index 7b2112f8..39e47a6c 100644
--- a/parsers/src/xhtml.rs
+++ b/parsers/src/xhtml.rs
@@ -513,7 +513,7 @@ mod tests {
     #[test]
     fn test_size() {
         assert_size!(XhtmlIm, 48);
-        assert_size!(Child, 112);
+        assert_size!(Child, 104);
         assert_size!(Tag, 104);
     }