diff --git a/CMakeLists.txt b/CMakeLists.txt
index 44193cac416331e1537e69d4077cce055fcd57a4..efcb79a01aed83cc18c1130d5fd4e33f9a6bd7e1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -346,7 +346,7 @@ if (PROTOBUF_FOUND)
 	endif()
 
 	if(IRC_FOUND)
-		ADD_DEFINITIONS(-DCOMMUNI_SHARED)
+		ADD_DEFINITIONS(-DIRC_SHARED)
 		message("IRC plugin        : yes")
 		include_directories(${QT_QTNETWORK_INCLUDE_DIR})
 		include_directories(${IRC_INCLUDE_DIR})