Index: src/platform/amiga/thread.m
==================================================================
--- src/platform/amiga/thread.m
+++ src/platform/amiga/thread.m
@@ -166,16 +166,19 @@
 
 bool
 of_thread_join(of_thread_t thread)
 {
 	ObtainSemaphore(&thread->semaphore);
-	@try {
-		if (thread->done) {
-			free(thread);
-			return true;
-		}
+
+	if (thread->done) {
+		ReleaseSemaphore(&thread->semaphore);
+
+		free(thread);
+		return true;
+	}
 
+	@try {
 		if (thread->detached || thread->joinTask != NULL) {
 			errno = EINVAL;
 			return false;
 		}