diff --git a/GPU/GLES/TextureCache.cpp b/GPU/GLES/TextureCache.cpp
index 3126343e5d..c24bdde5b2 100644
--- a/GPU/GLES/TextureCache.cpp
+++ b/GPU/GLES/TextureCache.cpp
@@ -951,8 +951,14 @@ void TextureCache::SetTextureFramebuffer(TexCacheEntry *entry) {
 			glstate.Restore();
 			framebufferManager_->RebindFramebuffer();
 
-			gstate_c.textureFullAlpha = false;
-			gstate_c.textureSimpleAlpha = gstate_c.textureFullAlpha;
+			const GEPaletteFormat clutFormat = gstate.getClutPaletteFormat();
+			const u32 clutBase = gstate.getClutIndexStartPos();
+			const u32 bytesPerColor = clutFormat == GE_CMODE_32BIT_ABGR8888 ? sizeof(u32) : sizeof(u16);
+			const u32 clutExtendedColors = (clutTotalBytes_ / bytesPerColor) + clutBase;
+
+			TexCacheEntry::Status alphaStatus = CheckAlpha(clutBuf_, getClutDestFormat(gstate.getClutPaletteFormat()), clutExtendedColors, clutExtendedColors, 1);
+			gstate_c.textureFullAlpha = alphaStatus == TexCacheEntry::STATUS_ALPHA_FULL;
+			gstate_c.textureSimpleAlpha = alphaStatus == TexCacheEntry::STATUS_ALPHA_SIMPLE;
 		} else {
 			entry->status &= ~TexCacheEntry::STATUS_DEPALETTIZE;
 			framebufferManager_->BindFramebufferColor(entry->framebuffer);