diff --git a/lib/common/error_private.c b/lib/common/error_private.c
index 692e66b22..7c1bb67a2 100644
--- a/lib/common/error_private.c
+++ b/lib/common/error_private.c
@@ -15,6 +15,7 @@
 const char* ERR_getErrorString(ERR_enum code)
 {
 #ifdef ZSTD_STRIP_ERROR_STRINGS
+    (void)code;
     return "Error strings stripped";
 #else
     static const char* const notErrorCode = "Unspecified error code";