diff --git a/backends/graphics/opengl/debug.cpp b/backends/graphics/opengl/debug.cpp
index 69006bb9752..d5d73fb5ecc 100644
--- a/backends/graphics/opengl/debug.cpp
+++ b/backends/graphics/opengl/debug.cpp
@@ -52,9 +52,9 @@ Common::String getGLErrStr(GLenum error) {
 } // End of anonymous namespace
 
 void checkGLError(const char *expr, const char *file, int line) {
-	GLenum error = glGetError();
+	GLenum error;
 
-	if (error != GL_NO_ERROR) {
+	while ((error = glGetError()) != GL_NO_ERROR) {
 		// We cannot use error here because we do not know whether we have a
 		// working screen or not.
 		warning("GL ERROR: %s on %s (%s:%d)", getGLErrStr(error).c_str(), expr, file, line);