diff --git a/semver.h b/semver.h
index 3a02d33..7a8b72e 100644
--- a/semver.h
+++ b/semver.h
@@ -10,8 +10,8 @@ typedef struct {
     uint8_t patch;
 } semver;
 
-bool sveq(semver, semver);
+bool sveq(semver s1, semver s2);
 
-char *svtoa(semver);
+char *svtoa(semver s);
 
 #endif // _MODFETCH_SEMVER_H