diff --git a/libgomp/testsuite/libgomp.oacc-c++/c++.exp b/libgomp/testsuite/libgomp.oacc-c++/c++.exp
index 7200ec19c47..42e0395f9a5 100644
--- a/libgomp/testsuite/libgomp.oacc-c++/c++.exp
+++ b/libgomp/testsuite/libgomp.oacc-c++/c++.exp
@@ -149,6 +149,7 @@ if { $lang_test_file_found } {
 
 	gcc-dg-runtest $tests "$tagopt" "$libstdcxx_includes"
     }
+    unset offload_target
 } else {
     # Call this once, which placates the subsequent torture-finish.
     set-torture-options [list \
diff --git a/libgomp/testsuite/libgomp.oacc-c/c.exp b/libgomp/testsuite/libgomp.oacc-c/c.exp
index 48cbc980731..4bb2b2ac494 100644
--- a/libgomp/testsuite/libgomp.oacc-c/c.exp
+++ b/libgomp/testsuite/libgomp.oacc-c/c.exp
@@ -112,6 +112,7 @@ foreach offload_target [concat [split $offload_targets ","] "disable"] {
 
     gcc-dg-runtest $tests "$tagopt" ""
 }
+unset offload_target
 
 # All done.
 torture-finish
diff --git a/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp b/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp
index d6079032505..7365b320668 100644
--- a/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp
+++ b/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp
@@ -121,6 +121,7 @@ if { $lang_test_file_found } {
 	# typically not the case for C/C++.
 	gfortran-dg-runtest $tests "$tagopt" ""
     }
+    unset offload_target
 }
 
 # All done.