diff --git a/ChangeLog b/ChangeLog
index c78e77347a..7438924c7a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2016-08-29  Paul E. Murphy  <murphyp@linux.vnet.ibm.com>
+
+	[BZ #20517]
+	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c:
+	Include ldbl-opt/s_fdim.c to ensure fdiml@GLIBC_2.1 is
+	exported.
+
 2016-08-29  Joseph Myers  <joseph@codesourcery.com>
 
 	* math/fetestexceptflag.c: New file.
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c
index c9c77049a2..9666741fd1 100644
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c
@@ -29,4 +29,4 @@ weak_alias (__fdim, fdim)
 # define __fdim __fdim_generic
 #endif
 
-#include <math/s_fdim.c>
+#include <ldbl-opt/s_fdim.c>