diff --git a/src/util/Makefile b/src/util/Makefile
index 9b1377012e..86eadede21 100644
--- a/src/util/Makefile
+++ b/src/util/Makefile
@@ -16,7 +16,7 @@ INSTALL = ${SRCDIR}bin/install
 objects = assert.o base64.o casestrcpy.o ktime.o volparse.o hostparse.o \
 	 hputil.o kreltime.o isathing.o get_krbrlm.o uuid.o serverLog.o \
 	 dirpath.o fileutil.o netutils.o flipbase64.o \
-	 afs_atomlist.o afs_lhash.o
+	 afs_atomlist.o afs_lhash.o snprintf.o
 
 headers = assert.h potpourri.h itc.h errors.h afsutil.h pthread_glock.h \
 	  dirpath.h afs_atomlist.h afs_lhash.h
@@ -76,6 +76,9 @@ util.a: ${objects} AFS_component_version_number.o
 volparse.o: volparse.c
 	${CC} ${CFLAGS} -c volparse.c
 
+snprintf.o: snprintf.c
+	${CC} ${CFLAGS} -c snprintf.c
+
 base64.o: base64.c
 	${CC} ${CFLAGS} -c base64.c
 
diff --git a/src/util/snprintf.c b/src/util/snprintf.c
index bad2699224..c789dc740f 100644
--- a/src/util/snprintf.c
+++ b/src/util/snprintf.c
@@ -1,5 +1,8 @@
 /* snprintf.c - Formatted, length-limited print to a string */
 
+#include <afs/param.h>
+#if defined(AFS_OSF20_ENV) || defined(AFS_SGI51_ENV)
+
 #include <sys/types.h>
 #include <stdarg.h>
 #include <stdio.h>
@@ -381,3 +384,4 @@ void snprintf(char *p, unsigned int avail, char *fmt, ...)
   vsnprintf(p, avail, fmt, ap);
   va_end(ap);
 }
+#endif /* AFS_OSF20_ENV || AFS_SGI51_ENV */