diff --git a/GPU/GLES/GLES_GPU.cpp b/GPU/GLES/GLES_GPU.cpp
index 358e89a8d5..896ea2e3b8 100644
--- a/GPU/GLES/GLES_GPU.cpp
+++ b/GPU/GLES/GLES_GPU.cpp
@@ -1436,6 +1436,15 @@ void GLES_GPU::ExecuteOpInternal(u32 op, u32 diff) {
 		break;
 #endif
 
+	// Handled in StateMapping.
+	case GE_CMD_STENCILTEST:
+	case GE_CMD_STENCILOP:
+		break;
+
+	case GE_CMD_MASKRGB:
+	case GE_CMD_MASKALPHA:
+		break;
+
 	case GE_CMD_UNKNOWN_03: 
 	case GE_CMD_UNKNOWN_0D:
 	case GE_CMD_UNKNOWN_11: