diff --git a/ground/gcs/src/libs/osgearth/osgearth.pro b/ground/gcs/src/libs/osgearth/osgearth.pro
index 47d15d7cf..7a8007e9a 100644
--- a/ground/gcs/src/libs/osgearth/osgearth.pro
+++ b/ground/gcs/src/libs/osgearth/osgearth.pro
@@ -12,6 +12,9 @@ contains(DEFINES, OSG_USE_QT_PRIVATE) {
 include(../../library.pri)
 include(../utils/utils.pri)
 
+# disable all warnings on mac to avoid build failures
+macx:CONFIG += warn_off
+
 # osg and osgearth emit a lot of unused parameter warnings...
 QMAKE_CXXFLAGS += -Wno-unused-parameter