diff --git a/tests/interactive/input.cpp b/tests/interactive/input.cpp
index 8344ef5c6a..1e45d50309 100644
--- a/tests/interactive/input.cpp
+++ b/tests/interactive/input.cpp
@@ -32,7 +32,9 @@
 #define TEST_SNGLINST
 #define TEST_FTP
 #define TEST_INFO_FUNCTIONS
-#define TEST_REGEX
+#if wxUSE_REGEX
+    #define TEST_REGEX
+#endif
 #define TEST_DATETIME
 
 // ----------------------------------------------------------------------------
diff --git a/tests/regex/regextest.cpp b/tests/regex/regextest.cpp
index bfe200932a..c31b639834 100644
--- a/tests/regex/regextest.cpp
+++ b/tests/regex/regextest.cpp
@@ -36,6 +36,8 @@
     #pragma hdrstop
 #endif
 
+#if wxUSE_REGEX
+
 // for all others, include the necessary headers
 #ifndef WX_PRECOMP
     #include "wx/wx.h"
@@ -393,3 +395,5 @@ void RegExTestSuite::add(
 
 
 #endif // wxHAS_REGEX_ADVANCED
+
+#endif // wxUSE_REGEX