diff --git a/tests/libtest/lib1522.c b/tests/libtest/lib1522.c
index 6ac2f9358..3675175ee 100644
--- a/tests/libtest/lib1522.c
+++ b/tests/libtest/lib1522.c
@@ -84,6 +84,7 @@ int test(char *URL)
 
   curl_slist_free_all(pHeaderList);
   curl_easy_cleanup(pCurl);
+  curl_global_cleanup();
 
   return 0;
 }
diff --git a/tests/libtest/lib1905.c b/tests/libtest/lib1905.c
index b09c4f526..79a50a782 100644
--- a/tests/libtest/lib1905.c
+++ b/tests/libtest/lib1905.c
@@ -88,6 +88,7 @@ int test(char *URL)
   curl_easy_cleanup(ch);
   curl_share_cleanup(sh);
   curl_multi_cleanup(cm);
+  curl_global_cleanup();
 
   return 0;
 }
diff --git a/tests/libtest/lib1906.c b/tests/libtest/lib1906.c
index af3d1acb6..6c7a4bf6e 100644
--- a/tests/libtest/lib1906.c
+++ b/tests/libtest/lib1906.c
@@ -66,6 +66,7 @@ int test(char *URL)
 
   curl_easy_cleanup(curl);
   curl_url_cleanup(curlu);
+  curl_global_cleanup();
 
   return 0;
 }
diff --git a/tests/unit/unit1608.c b/tests/unit/unit1608.c
index 4fc24704b..38d5cb278 100644
--- a/tests/unit/unit1608.c
+++ b/tests/unit/unit1608.c
@@ -65,6 +65,7 @@ UNITTEST_START
   }
 
   curl_easy_cleanup(easy);
+  curl_global_cleanup();
 
   abort_unless(addrhead != addrs, "addresses are not being reordered");