diff --git a/plugins/CMakeLists.txt b/plugins/CMakeLists.txt
index 4902b320d..24c6d2fc3 100644
--- a/plugins/CMakeLists.txt
+++ b/plugins/CMakeLists.txt
@@ -9,7 +9,7 @@ set(CMAKE_BUILD_TYPE "")
 if(WIN32)
   set(PLUGINEXT "dll")
   set(PLUGINPRE "__nc")
-elif(CYGWIN)
+elseif(CYGWIN)
   set(PLUGINEXT "dll")
   set(PLUGINPRE "lib__nc")
 else()