diff --git a/lib/fko_encode.c b/lib/fko_encode.c
index 2587dd95..2adb42ff 100644
--- a/lib/fko_encode.c
+++ b/lib/fko_encode.c
@@ -197,7 +197,7 @@ fko_encode_spa_data(fko_ctx_t ctx)
 
     ctx->encoded_msg_len = strnlen(ctx->encoded_msg, MAX_SPA_ENCODED_MSG_SIZE);
 
-    if(! is_valid_encoded_msg_len(ctx->encoded_msg_len));
+    if(! is_valid_encoded_msg_len(ctx->encoded_msg_len))
         return(FKO_ERROR_INVALID_DATA);
 
     /* At this point we can compute the digest for this SPA data.