diff --git a/bin/csh/iconv_stub.c b/bin/csh/iconv_stub.c
index d1a9e475d87..e20608c6061 100644
--- a/bin/csh/iconv_stub.c
+++ b/bin/csh/iconv_stub.c
@@ -36,9 +36,9 @@
 #undef iconv_close
 
 #define ICONVLIB	"libiconv.so"
-#define ICONV_ENGINE	"iconv"
-#define ICONV_OPEN	"iconv_open"
-#define ICONV_CLOSE	"iconv_close"
+#define ICONV_ENGINE	"libiconv"
+#define ICONV_OPEN	"libiconv_open"
+#define ICONV_CLOSE	"libiconv_close"
 
 typedef iconv_t iconv_open_t(const char *, const char *);