diff --git a/src/enc/config_enc.c b/src/enc/config_enc.c
index ac478484..20d1936b 100644
--- a/src/enc/config_enc.c
+++ b/src/enc/config_enc.c
@@ -135,8 +135,8 @@ int WebPValidateConfig(const WebPConfig* config) {
 
 // Mapping between -z level and -m / -q parameter settings.
 static const struct {
-  uint8_t method_;
-  uint8_t quality_;
+  uint8_t method;
+  uint8_t quality;
 } kLosslessPresets[MAX_LEVEL + 1] = {
   { 0,  0 }, { 1, 20 }, { 2, 25 }, { 3, 30 }, { 3, 50 },
   { 4, 50 }, { 4, 75 }, { 4, 90 }, { 5, 90 }, { 6, 100 }
@@ -145,8 +145,8 @@ static const struct {
 int WebPConfigLosslessPreset(WebPConfig* config, int level) {
   if (config == NULL || level < 0 || level > MAX_LEVEL) return 0;
   config->lossless = 1;
-  config->method = kLosslessPresets[level].method_;
-  config->quality = kLosslessPresets[level].quality_;
+  config->method = kLosslessPresets[level].method;
+  config->quality = kLosslessPresets[level].quality;
   return 1;
 }