diff --git a/mkspecs/features/libraries.pri b/mkspecs/features/libraries.pri
index 370ec4f41..2593bbc25 100644
--- a/mkspecs/features/libraries.pri
+++ b/mkspecs/features/libraries.pri
@@ -30,8 +30,8 @@ simconnect {
     DEFINES += SIMCONNECT_H_NOMANIFEST
 
     equals(WORD_SIZE,64) {
-        INCLUDEPATH *= $$EXTERNALSROOT/common/include/simconnect/P3D-v4.1
-        LIBS *= -L$$EXTERNALS_LIB_DIR/P3D-v4.1
+        INCLUDEPATH *= $$EXTERNALSROOT/common/include/simconnect/P3D-v4.2
+        LIBS *= -L$$EXTERNALS_LIB_DIR/P3D-v4.2
         LIBS *= -lAdvapi32
         LIBS += -ldxguid -lole32
         # ole32 only needed for P3D on WIN64 systems, LNK2019: unresolved external symbol __imp_CoTaskMemFree referenced in function
diff --git a/src/plugins/simulator/p3d/p3d.pro b/src/plugins/simulator/p3d/p3d.pro
index 6f9592741..f14e8b0fa 100644
--- a/src/plugins/simulator/p3d/p3d.pro
+++ b/src/plugins/simulator/p3d/p3d.pro
@@ -2,6 +2,9 @@ load(common_pre)
 
 load(common_pre)
 
+# the P3D version is decided here
+# client\mkspecs\features\libraries.pri
+
 QT += core dbus widgets network
 
 TEMPLATE = lib