diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 10014eb2f76..69c63d7c38a 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2009-04-05  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* include/bits/random.tcc (piecewise_linear_distribution<>::
+	operator()(_UniformRandomNumberGenerator&, const param_type&)):
+	Remove spurious closed parenthesis.
+
 2009-04-05  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR libstdc++/39644 (partial)
diff --git a/libstdc++-v3/include/bits/random.tcc b/libstdc++-v3/include/bits/random.tcc
index bfd017a9934..b6a25434bf3 100644
--- a/libstdc++-v3/include/bits/random.tcc
+++ b/libstdc++-v3/include/bits/random.tcc
@@ -2595,7 +2595,7 @@ namespace std
 						 - 4.0 * __a * __c), __b));
 #else
 			 + (__b < 0.0 ? -1.0 : 1.0)
-			 * std::sqrt(__b * __b - 4.0 * __a * __c)));
+			 * std::sqrt(__b * __b - 4.0 * __a * __c));
 #endif
 	const double __x0 = __param._M_int[__i];
 	const double __x1 = __q / __a;