Index: src/OFTCPSocket.m
==================================================================
--- src/OFTCPSocket.m
+++ src/OFTCPSocket.m
@@ -223,11 +223,11 @@
 	memset(&addr, 0, sizeof(addr));
 	addr.sin_family = AF_INET;
 	addr.sin_port = port;
 
 	if (he->h_addrtype != AF_INET || he->h_addr_list[0] == NULL) {
-		[mutex lock];
+		[mutex unlock];
 		@throw [OFAddressTranslationFailedException
 		    newWithClass: isa
 			    node: node
 			 service: service];
 	}