diff --git a/simgear/canvas/elements/CanvasImage.cxx b/simgear/canvas/elements/CanvasImage.cxx
index c89c71a4..4dc0b341 100644
--- a/simgear/canvas/elements/CanvasImage.cxx
+++ b/simgear/canvas/elements/CanvasImage.cxx
@@ -31,6 +31,7 @@
 #include <osg/Geometry>
 #include <osg/PrimitiveSet>
 #include <osgDB/Registry>
+#include <osg/Version>
 
 namespace simgear
 {
diff --git a/simgear/scene/sky/CloudShaderGeometry.hxx b/simgear/scene/sky/CloudShaderGeometry.hxx
index 6d78af2f..b8e44fa0 100644
--- a/simgear/scene/sky/CloudShaderGeometry.hxx
+++ b/simgear/scene/sky/CloudShaderGeometry.hxx
@@ -32,6 +32,7 @@
 #include <osg/Vec3>
 #include <osg/Vec4>
 #include <osg/buffered_value>
+#include <osg/Version>
 
 #include <simgear/math/SGMath.hxx>
 #include <simgear/math/sg_random.h>
diff --git a/simgear/scene/tgdb/ShaderGeometry.hxx b/simgear/scene/tgdb/ShaderGeometry.hxx
index a5de095f..7a711f22 100644
--- a/simgear/scene/tgdb/ShaderGeometry.hxx
+++ b/simgear/scene/tgdb/ShaderGeometry.hxx
@@ -32,6 +32,7 @@
 #include <osg/RenderInfo>
 #include <osg/Vec3>
 #include <osg/Vec4>
+#include <osg/Version>
 
 namespace simgear
 {