diff --git a/src/fg_geometry.c b/src/fg_geometry.c
index ee7cc89..ea42f72 100644
--- a/src/fg_geometry.c
+++ b/src/fg_geometry.c
@@ -44,7 +44,7 @@
 
 /* declare for drawing using the different OpenGL versions here so we can
    have a nice code order below */
-#ifndef GL_VERSION_1_1
+#if !(defined(GL_VERSION_1_1) || defined(GL_VERSION_ES_CM_1_0))
 static void fghDrawGeometryWire10(GLfloat *varr, GLfloat *narr, GLushort *iarr,
 		GLsizei nparts, GLsizei npartverts, GLenum prim, GLushort *iarr2,
 		GLsizei nparts2, GLsizei npartverts2);
@@ -222,7 +222,7 @@ void fghDrawGeometrySolid(GLfloat *vertices, GLfloat *normals, GLfloat *textcs,
     }
 }
 
-#ifndef GL_VERSION_1_1
+#if !(defined(GL_VERSION_1_1) || defined(GL_VERSION_ES_CM_1_0))
 static void fghDrawGeometryWire10(GLfloat *varr, GLfloat *narr, GLushort *iarr,
 		GLsizei nparts, GLsizei npartverts, GLenum prim, GLushort *iarr2,
 		GLsizei nparts2, GLsizei npartverts2)