diff --git a/lib/src/client.dart b/lib/src/client.dart
index ab8dc4b..eb4c15c 100644
--- a/lib/src/client.dart
+++ b/lib/src/client.dart
@@ -1617,7 +1617,7 @@ class Client {
     List<olm.Session> existingSessions = olmSessions[senderKey];
     if (existingSessions != null) {
       for (olm.Session session in existingSessions) {
-        if (type == 0 && session.matches_inbound(body) != 0) {
+        if (type == 0 && session.matches_inbound(body) == true) {
           plaintext = session.decrypt(type, body);
           storeOlmSession(senderKey, session);
           break;
diff --git a/pubspec.lock b/pubspec.lock
index b393bc2..f13d0ef 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -292,8 +292,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: "307dc133867eb5bf80d4f5c7412e58621dfca3cf"
-      resolved-ref: "307dc133867eb5bf80d4f5c7412e58621dfca3cf"
+      ref: bbc7ce10a52be5d5c10d2eb6c3591aade71356e2
+      resolved-ref: bbc7ce10a52be5d5c10d2eb6c3591aade71356e2
       url: "https://gitlab.com/famedly/libraries/dart-olm.git"
     source: git
     version: "0.0.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 3e10a63..a859b33 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -15,7 +15,7 @@ dependencies:
   olm:
     git:
       url: https://gitlab.com/famedly/libraries/dart-olm.git
-      ref: 307dc133867eb5bf80d4f5c7412e58621dfca3cf
+      ref: bbc7ce10a52be5d5c10d2eb6c3591aade71356e2
 
 dev_dependencies:
   test: ^1.0.0