diff --git a/modules/juce_opengl/native/juce_MissingGLDefinitions.h b/modules/juce_opengl/native/juce_MissingGLDefinitions.h
index d7d3e342b8..9a66cc82f8 100644
--- a/modules/juce_opengl/native/juce_MissingGLDefinitions.h
+++ b/modules/juce_opengl/native/juce_MissingGLDefinitions.h
@@ -83,6 +83,10 @@ enum MissingOpenGLDefinitions
     GL_STENCIL_ATTACHMENT           = 0x8D20,
    #endif
 
+   #ifndef GL_MULTISAMPLE
+    GL_MULTISAMPLE                  = 0x809D,
+   #endif
+
    #if JUCE_WINDOWS && ! defined (GL_TEXTURE0)
     GL_OPERAND0_RGB                 = 0x8590,
     GL_OPERAND1_RGB                 = 0x8591,