diff --git a/src/src.pro b/src/src.pro
index 87b6815df..0852862f8 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -51,7 +51,7 @@ LIBS += -lm $${LIBZ_LIBS}
     isEmpty( QWT3D_LIBS )    { QWT3D_LIBS    = $${QWT3D_INSTALL}/lib/libqwtplot3d.a }
     INCLUDEPATH += $${QWT3D_INCLUDE}
     LIBS        += $${QWT3D_LIBS}
-    unix { LIBS += -lGLU }
+    unix:!macx { LIBS += -lGLU }
     QT          += opengl
     DEFINES     += GC_HAVE_QWTPLOT3D
     HEADERS     += ModelPlot.h ModelWindow.h