diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 7685a7cd9..4f4879b71 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,7 @@
+2002-04-01  Till Straumann <strauman@SLAC.Stanford.EDU>
+
+	* libc/stdlib/getenv_r.c (_findenv_r): Add missing ENV_UNLOCK.
+
 Wed Mar 27 07:34:44 2002  Jason Tishler <jason@tishler.net>
 
 	* libc/include/sys/features.h (_POSIX_SEMAPHORES): New Cygwin define.
diff --git a/newlib/libc/stdlib/getenv_r.c b/newlib/libc/stdlib/getenv_r.c
index 4d567c718..2cc48cfd7 100644
--- a/newlib/libc/stdlib/getenv_r.c
+++ b/newlib/libc/stdlib/getenv_r.c
@@ -94,7 +94,10 @@ _DEFUN (_findenv_r, (reent_ptr, name, offset),
   /* In some embedded systems, this does not get set.  This protects
      newlib from dereferencing a bad pointer.  */
   if (!*p_environ)
-    return NULL;
+    {
+      ENV_UNLOCK;
+      return NULL;
+    }
 
   c = name;
   len = 0;