diff --git a/src/ipc.h b/src/ipc.h
index c0bd414..21fe210 100644
--- a/src/ipc.h
+++ b/src/ipc.h
@@ -16,7 +16,8 @@
 #define RUNDIR "/run/ipc/"
 #define PATH_MAX 4096
 #define IPC_HEADER_SIZE 6
-#define IPC_MAX_MESSAGE_SIZE  2000-IPC_HEADER_SIZE
+#define __IPC_BASE_SIZE       2000000  // 2 MB, plenty enough space for messages
+#define IPC_MAX_MESSAGE_SIZE  __IPC_BASE_SIZE-IPC_HEADER_SIZE
 
 #define IPC_VERSION 4