diff --git a/common/gal/opengl/utils.cpp b/common/gal/opengl/utils.cpp
index ef99ff9042..e8644c876b 100644
--- a/common/gal/opengl/utils.cpp
+++ b/common/gal/opengl/utils.cpp
@@ -84,7 +84,7 @@ int checkGlError( const std::string& aInfo, bool aThrow )
 
 
 static void debugMsgCallback( GLenum aSource, GLenum aType, GLuint aId,
-   GLenum aSeverity, GLsizei aLength, const GLchar* aMessage, const void* aUserParam )
+   GLenum aSeverity, GLsizei aLength, const GLchar* aMessage, void* aUserParam )
 {
     printf( "%s", aMessage );
 }
@@ -95,7 +95,7 @@ void enableGlDebug( bool aEnable )
     if( aEnable )
     {
         glEnable( GL_DEBUG_OUTPUT );
-        glDebugMessageCallback( debugMsgCallback, (void*) nullptr );
+        glDebugMessageCallback( (GLDEBUGPROC) debugMsgCallback, nullptr );
     }
     else
     {