diff --git a/CMakeLists.txt b/CMakeLists.txt
index b9f471c8..8cd66980 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -535,7 +535,6 @@ if(LIB)
 	if(WIN32)
 		if(MINGW)
 			if (NOT CROSSTOOLS)
-				install(FILES ${HDRS} DESTINATION ${MINGW_INCLUDE}/pip)
 				install(FILES ${HDRS} DESTINATION ${MINGW_INCLUDE}/pip)
 				if(HDR_DIRS)
 					install(DIRECTORY ${HDR_DIRS} DESTINATION ${MINGW_INCLUDE}/pip)