diff --git a/sim/Makefile.in b/sim/Makefile.in
index 18e84e52266..f471289600c 100644
--- a/sim/Makefile.in
+++ b/sim/Makefile.in
@@ -2474,13 +2474,14 @@ check/%.exp:
 
 check-DEJAGNU-parallel:
 	$(AM_V_at)( \
-	$(MAKE) -k \
-	  `cd $(srcdir)/testsuite && find . -name '*.exp' -printf 'check/%P '`; \
+	set -- `cd $(srcdir)/testsuite && find . -name '*.exp' -printf '%P\n' | sed 's:[.]exp$$::'`; \
+	$(MAKE) -k `printf 'check/%s.exp ' $$@`; \
 	ret=$$?; \
+	set -- `printf 'testsuite/%s/ ' $$@`; \
 	$(SHELL) $(srcroot)/contrib/dg-extract-results.sh \
-	  `find testsuite/ -maxdepth 4 -name testrun.sum | sort` > testrun.sum; \
+	  `find $$@ -maxdepth 1 -name testrun.sum 2>/dev/null | sort` > testrun.sum; \
 	$(SHELL) $(srcroot)/contrib/dg-extract-results.sh -L \
-	  `find testsuite/ -maxdepth 4 -name testrun.log | sort` > testrun.log; \
+	  `find $$@ -maxdepth 1 -name testrun.log 2>/dev/null | sort` > testrun.log; \
 	echo; \
 	$(SED) -n '/^.*===.*Summary.*===/,$$p' testrun.sum; \
 	exit $$ret)
diff --git a/sim/testsuite/local.mk b/sim/testsuite/local.mk
index b8114a56599..cee51f24ae0 100644
--- a/sim/testsuite/local.mk
+++ b/sim/testsuite/local.mk
@@ -50,13 +50,14 @@ check/%.exp:
 
 check-DEJAGNU-parallel:
 	$(AM_V_at)( \
-	$(MAKE) -k \
-	  `cd $(srcdir)/testsuite && find . -name '*.exp' -printf 'check/%P '`; \
+	set -- `cd $(srcdir)/testsuite && find . -name '*.exp' -printf '%P\n' | sed 's:[.]exp$$::'`; \
+	$(MAKE) -k `printf 'check/%s.exp ' $$@`; \
 	ret=$$?; \
+	set -- `printf 'testsuite/%s/ ' $$@`; \
 	$(SHELL) $(srcroot)/contrib/dg-extract-results.sh \
-	  `find testsuite/ -maxdepth 4 -name testrun.sum | sort` > testrun.sum; \
+	  `find $$@ -maxdepth 1 -name testrun.sum 2>/dev/null | sort` > testrun.sum; \
 	$(SHELL) $(srcroot)/contrib/dg-extract-results.sh -L \
-	  `find testsuite/ -maxdepth 4 -name testrun.log | sort` > testrun.log; \
+	  `find $$@ -maxdepth 1 -name testrun.log 2>/dev/null | sort` > testrun.log; \
 	echo; \
 	$(SED) -n '/^.*===.*Summary.*===/,$$p' testrun.sum; \
 	exit $$ret)