diff --git a/src/stc/gen_iface.py b/src/stc/gen_iface.py
index e885cda3bb..04ff317485 100755
--- a/src/stc/gen_iface.py
+++ b/src/stc/gen_iface.py
@@ -78,7 +78,8 @@ notMappedSciValues = set([
     'INDIC0_MASK',
     'INDIC1_MASK',
     'INDIC2_MASK',
-    'INDICS_MASK'
+    'INDICS_MASK',
+    'SCFIND_CXX11REGEX'
 ])
 
 # Map some generic typenames to wx types, using return value syntax
diff --git a/src/stc/stc.h.in b/src/stc/stc.h.in
index 6ca3d24aa8..0713ec6212 100644
--- a/src/stc/stc.h.in
+++ b/src/stc/stc.h.in
@@ -124,6 +124,14 @@ class WXDLLIMPEXP_FWD_CORE wxScrollBar;
 
 #endif // WXWIN_COMPATIBILITY_3_0
 
+// wxSTC is currently built without c++11 regex support, but the search flag
+// wxSTC_FIND_CXX11REGEX was included with wxSTC any way. gen_iface.py has since
+// been changed so that this flag will no longer be generated or documented,
+// but the flag is preserved here so that any code using the flag before
+// gen_iface.py was changed will not be broken.
+
+#define wxSTC_FIND_CXX11REGEX 0x00800000
+
 //----------------------------------------------------------------------
 // Commands that can be bound to keystrokes section {{{