diff --git a/parsers/src/iq.rs b/parsers/src/iq.rs
index 4e63649b0dbed924577e44b16942a06b731ca659..ccd5597269b50261d86c71e7632c14dcd01ec90e 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 1a96469d703051fe401ba5eab4b33ab916374b67..584abfbb026d0cfe13cc79b551e08ec6466c1e0f 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 1e9202c7c2d4c80a272355206c0096ada26dd5fd..b2624bfd97bbbdfbf84d4e433ef0601f318a0f6e 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 881351fda740597f35bc9227c0f9296446f5f2bf..6eb24eaef4b86d5692c1275c8e44a16596b66a3c 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 7b2112f8bfc1952eb8cea45b189006a41df3febb..39e47a6c4593ed01c7368fe1247653681fe87ac9 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);
     }