diff --git a/Bugsnag/Client/BugsnagClient.m b/Bugsnag/Client/BugsnagClient.m
index 6a187b3fe..2e00b8787 100644
--- a/Bugsnag/Client/BugsnagClient.m
+++ b/Bugsnag/Client/BugsnagClient.m
@@ -234,11 +234,12 @@ - (void)start {
     // from the start method.
     [self.configuration validate];
 
+    // MUST be called before BSGRunContextInit to initialize bsg_runContext
+    BSGCrashSentryInstall(self.configuration, BSSerializeDataCrashHandler);
+
     // MUST be called before any code that accesses bsg_runContext
     BSGRunContextInit(BSGFileLocations.current.runContext);
 
-    BSGCrashSentryInstall(self.configuration, BSSerializeDataCrashHandler);
-
     self.systemState = [[BugsnagSystemState alloc] initWithConfiguration:self.configuration];
 
     // add metadata about app/device