diff --git a/panda/src/glstuff/panda_glext.h b/panda/src/glstuff/panda_glext.h
index bda9579d36..6949c1c245 100644
--- a/panda/src/glstuff/panda_glext.h
+++ b/panda/src/glstuff/panda_glext.h
@@ -6049,7 +6049,7 @@ typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum
 typedef GLboolean (APIENTRYP PFNGLISPROGRAMPROC) (GLuint program);
 typedef GLboolean (APIENTRYP PFNGLISSHADERPROC) (GLuint shader);
 typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program);
-typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar* const *string, const GLint *length);
+typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar **string, const GLint *length);
 typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program);
 typedef void (APIENTRYP PFNGLUNIFORM1FPROC) (GLint location, GLfloat v0);
 typedef void (APIENTRYP PFNGLUNIFORM2FPROC) (GLint location, GLfloat v0, GLfloat v1);