diff --git a/libs/ardour/MSVClibardour/ardour.vcproj b/libs/ardour/MSVClibardour/ardour.vcproj
index ec95b36c22..dc425cc6a5 100644
--- a/libs/ardour/MSVClibardour/ardour.vcproj
+++ b/libs/ardour/MSVClibardour/ardour.vcproj
@@ -459,6 +459,10 @@
 				RelativePath="..\diskstream.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\dsp_load_calculator.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\element_import_handler.cc"
 				>
@@ -1529,6 +1533,10 @@
 				RelativePath="..\ardour\diskstream.h"
 				>
 			</File>
+			<File
+				RelativePath="..\ardour\dsp_load_calculator.h"
+				>
+			</File>
 			<File
 				RelativePath="..\ardour\element_import_handler.h"
 				>
diff --git a/libs/backends/MSVCbackends/portaudio_audiobackend.vcproj b/libs/backends/MSVCbackends/portaudio_audiobackend.vcproj
index 79a0b91462..3607ab55a9 100644
--- a/libs/backends/MSVCbackends/portaudio_audiobackend.vcproj
+++ b/libs/backends/MSVCbackends/portaudio_audiobackend.vcproj
@@ -318,10 +318,6 @@
 				RelativePath="..\portaudio\debug.h"
 				>
 			</File>
-			<File
-				RelativePath="..\portaudio\dsp_load_calculator.h"
-				>
-			</File>
 			<File
 				RelativePath="..\portaudio\midi_util.h"
 				>