diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7b99ee1d7..255875c3b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1058,7 +1058,7 @@ set (PCH_SOURCES
 	common/cutscenes/movieplayer.cpp
 	common/cutscenes/screenjob.cpp
 	common/utility/engineerrors.cpp
-	common/utility/i_module.cpp
+	
 	common/utility/gitinfo.cpp
 	common/utility/m_alloc.cpp
 	common/utility/utf8.cpp
@@ -1193,6 +1193,10 @@ set (PCH_SOURCES
 	utility/nodebuilder/nodebuild_utility.cpp
 )
 
+if( ZMUSIC_SYSTEM_INSTALL )
+	set ( PCH_SOURCES ${PCH_SOURCES} common/utility/i_module.cpp )
+endif()
+
 if( ${HAVE_VM_JIT} )
 	set( PCH_SOURCES ${PCH_SOURCES} ${VM_JIT_SOURCES} )
 else()