diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 1033a24098..1538d152f1 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2015-09-09  Doug Evans  <dje@google.com>
+
+	* gdb.python/py-prettyprint.exp: Check result of run_lang_tests.
+
 2015-09-09  Doug Evans  <dje@google.com>
 
 	* gdb.base/pie-execl.exp: Fix result test of build_executable.
diff --git a/gdb/testsuite/gdb.python/py-prettyprint.exp b/gdb/testsuite/gdb.python/py-prettyprint.exp
index bbcee56312..4cc9654724 100644
--- a/gdb/testsuite/gdb.python/py-prettyprint.exp
+++ b/gdb/testsuite/gdb.python/py-prettyprint.exp
@@ -114,8 +114,12 @@ proc run_lang_tests {exefile lang} {
     gdb_continue_to_end
 }
 
-run_lang_tests "${binfile}" "c"
-run_lang_tests "${binfile}-cxx" "c++"
+if { [run_lang_tests "${binfile}" "c"] == -1 } {
+    return
+}
+if { [run_lang_tests "${binfile}-cxx" "c++"] == -1 } {
+    return
+}
 
 # Run various other tests.