diff --git a/packages/PLStream/pl-text.c b/packages/PLStream/pl-text.c
index fd5c359b7..04bbb001a 100644
--- a/packages/PLStream/pl-text.c
+++ b/packages/PLStream/pl-text.c
@@ -30,6 +30,9 @@
 #ifdef __WINDOWS__
 #include "pl-mswchar.h"			/* Terrible hack */
 #endif
+#if HAVE_LIMITS_H
+#include <limits.h>			/* solaris compatibility */
+#endif
 
 #undef LD
 #define LD LOCAL_LD
diff --git a/packages/PLStream/pl-yap.c b/packages/PLStream/pl-yap.c
index 76ba0d5cc..632d4f7b5 100644
--- a/packages/PLStream/pl-yap.c
+++ b/packages/PLStream/pl-yap.c
@@ -3,6 +3,9 @@
 
 #include <stdio.h>
 #include "pl-incl.h"
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
 
 int fileerrors;