diff --git a/CHANGES b/CHANGES
index 4af421662..ba58c3907 100644
--- a/CHANGES
+++ b/CHANGES
@@ -12,6 +12,7 @@ Emulation fixes:
  - GBA Video: Latch scanline at end of Hblank (fixes mgba.io/i/1319)
  - GBA Video: Fix Hblank timing
  - GBA Video: Fix backdrop blending on lines without sprites (fixes mgba.io/i/1647)
+ - GBA Video: Fix OpenGL sprite flag priority
 Other fixes:
  - Qt: Only dynamically reset video scale if a game is running
  - Qt: Fix race condition with proxied video events
diff --git a/src/gba/renderers/gl.c b/src/gba/renderers/gl.c
index 501dcaee5..e09e5e08d 100644
--- a/src/gba/renderers/gl.c
+++ b/src/gba/renderers/gl.c
@@ -1711,13 +1711,13 @@ void GBAVideoGLRendererDrawSprite(struct GBAVideoGLRenderer* renderer, struct GB
 	glStencilFunc(GL_EQUAL, 1, 1);
 	glUseProgram(shader->program);
 	glDrawBuffers(2, (GLenum[]) { GL_NONE, GL_COLOR_ATTACHMENT1 });
-	glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_FALSE);
 	glBindVertexArray(shader->vao);
 	glUniform2i(uniforms[GBA_GL_VS_LOC], totalHeight, 0);
 	glUniform2i(uniforms[GBA_GL_VS_MAXPOS], totalWidth, totalHeight);
-	glUniform4i(uniforms[GBA_GL_OBJ_INFLAGS], GBAObjAttributesCGetPriority(sprite->c), 0, 0, 0);
+	glUniform4i(uniforms[GBA_GL_OBJ_INFLAGS], GBAObjAttributesCGetPriority(sprite->c),
+	                                          (renderer->target1Obj || GBAObjAttributesAGetMode(sprite->a) == OBJ_MODE_SEMITRANSPARENT) | (renderer->target2Obj * 2) | (renderer->blendEffect * 4),
+	                                          renderer->blda, GBAObjAttributesAGetMode(sprite->a) == OBJ_MODE_SEMITRANSPARENT);
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
-	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
 
 	glDrawBuffers(1, (GLenum[]) { GL_COLOR_ATTACHMENT0 });
 }