diff --git a/lib/sbi/sbi_sse.c b/lib/sbi/sbi_sse.c
index 9f22375f..2f9bdef8 100644
--- a/lib/sbi/sbi_sse.c
+++ b/lib/sbi/sbi_sse.c
@@ -882,7 +882,7 @@ int sbi_sse_hart_mask(void)
 		return SBI_EFAIL;
 
 	if (state->masked)
-		return SBI_EALREADY_STARTED;
+		return SBI_EALREADY_STOPPED;
 
 	state->masked = true;
 
@@ -897,7 +897,7 @@ int sbi_sse_hart_unmask(void)
 		return SBI_EFAIL;
 
 	if (!state->masked)
-		return SBI_EALREADY_STOPPED;
+		return SBI_EALREADY_STARTED;
 
 	state->masked = false;