diff --git a/src/oshash.c b/src/oshash.c
index c8106c2..1f5d89c 100644
--- a/src/oshash.c
+++ b/src/oshash.c
@@ -104,6 +104,8 @@ int print_oshash(FILE *output, char const *filename) {
     char hash[32];
 #ifdef WIN32
     sprintf(hash, "%016I64x", gen_oshash(filename));
+#elif defined (__SVR4) && defined (__sun)
+    sprintf(hash,"%016llx", gen_oshash(filename));
 #else
     sprintf(hash, "%016qx", gen_oshash(filename));
 #endif