diff --git a/src/plugins/simulator/flightgear/flightgear.pro b/src/plugins/simulator/flightgear/flightgear.pro
index 70693befa..e9a6fd586 100644
--- a/src/plugins/simulator/flightgear/flightgear.pro
+++ b/src/plugins/simulator/flightgear/flightgear.pro
@@ -13,7 +13,11 @@ INCLUDEPATH += . $$SourceRoot/src
 
 unix:!macx {
     INCLUDEPATH *= /usr/include/dbus-1.0
+    exists (/usr/lib/x86_64-linux-gnu){
     INCLUDEPATH *= /usr/lib/x86_64-linux-gnu/dbus-1.0/include
+    } else {
+    INCLUDEPATH *= /usr/lib/dbus-1.0/include
+    }
 }
 
 SOURCES += *.cpp
diff --git a/src/plugins/simulator/xplane/xplane.pro b/src/plugins/simulator/xplane/xplane.pro
index 4b89e87cd..70b0ccfe3 100644
--- a/src/plugins/simulator/xplane/xplane.pro
+++ b/src/plugins/simulator/xplane/xplane.pro
@@ -13,7 +13,11 @@ INCLUDEPATH += . $$SourceRoot/src
 
 unix:!macx {
     INCLUDEPATH *= /usr/include/dbus-1.0
+    exists (/usr/lib/x86_64-linux-gnu){
     INCLUDEPATH *= /usr/lib/x86_64-linux-gnu/dbus-1.0/include
+    } else {
+    INCLUDEPATH *= /usr/lib/dbus-1.0/include
+    }
 }
 
 SOURCES += *.cpp
diff --git a/src/xswiftbus/xswiftbus.pro b/src/xswiftbus/xswiftbus.pro
index 2cfe2040d..14e3c3414 100644
--- a/src/xswiftbus/xswiftbus.pro
+++ b/src/xswiftbus/xswiftbus.pro
@@ -42,7 +42,11 @@ INCLUDEPATH += ./libxplanemp ./libxplanemp/include ./libxplanemp/src
 
 unix:!macx {
     INCLUDEPATH *= /usr/include/dbus-1.0
+    exists (/usr/lib/x86_64-linux-gnu){
     INCLUDEPATH *= /usr/lib/x86_64-linux-gnu/dbus-1.0/include
+    } else {
+    INCLUDEPATH *= /usr/lib/dbus-1.0/include
+    }
 }
 
 # PlatformUtils also not used