diff --git a/plugins/remotefortressreader/CMakeLists.txt b/plugins/remotefortressreader/CMakeLists.txt
index be03e604f..0b84d8905 100644
--- a/plugins/remotefortressreader/CMakeLists.txt
+++ b/plugins/remotefortressreader/CMakeLists.txt
@@ -9,7 +9,7 @@ SET(PROJECT_HDRS
 )
 #proto files to include.
 SET(PROJECT_PROTO
-	../../proto/RemoteFortressReader
+    ../../proto/RemoteFortressReader
 )
 
 SET_SOURCE_FILES_PROPERTIES( ${PROJECT_HDRS} PROPERTIES HEADER_FILE_ONLY TRUE)