diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d75f985c5d4..6ed150c622c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2017-05-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
+	* gcc.target/powerpc/pr78604.c: Fix typo in dg-options.
+
 2017-05-17  Fritz Reese <fritzoreese@gmail.com>
 
 	PR fortran/80668
diff --git a/gcc/testsuite/gcc.target/powerpc/pr78604.c b/gcc/testsuite/gcc.target/powerpc/pr78604.c
index 757328e1a55..23315199b04 100644
--- a/gcc/testsuite/gcc.target/powerpc/pr78604.c
+++ b/gcc/testsuite/gcc.target/powerpc/pr78604.c
@@ -2,7 +2,7 @@
 /* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
 /* { dg-require-effective-target powerpc_p8vector_ok } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
-/* { dg-options "-mcpu=power8 -O2 -ftree-vectorize -fdump-tree-details" } */
+/* { dg-options "-mcpu=power8 -O2 -ftree-vectorize -fdump-tree-vect-details" } */
 
 #ifndef SIZE
 #define SIZE 1024