diff --git a/Frameworks/regexp/src/regexp.cc b/Frameworks/regexp/src/regexp.cc
index 1228dac6..c1a2698d 100644
--- a/Frameworks/regexp/src/regexp.cc
+++ b/Frameworks/regexp/src/regexp.cc
@@ -111,9 +111,12 @@ namespace regexp
 	{
 		if(ptrn)
 		{
+			char const* gpos = (options & ONIG_OPTION_NOTGPOS) ? nullptr : (from ?: first);
+			options &= ~ONIG_OPTION_NOTGPOS;
+
 			struct helper_t { static void region_free (OnigRegion* r) { onig_region_free(r, 1); } };
 			regexp::region_ptr region(onig_region_new(), &helper_t::region_free);
-			if(ONIG_MISMATCH != onig_search(ptrn.get().get(), (OnigUChar const*)first, (OnigUChar const*)last, (OnigUChar const*)(from ?: first), (OnigUChar const*)(to ?: last), region.get(), options))
+			if(ONIG_MISMATCH != onig_search_gpos(ptrn.get().get(), (OnigUChar const*)first, (OnigUChar const*)last, (OnigUChar*)gpos, (OnigUChar const*)(from ?: first), (OnigUChar const*)(to ?: last), region.get(), options))
 				return match_t(region, ptrn.get(), first);
 		}
 		return match_t();
diff --git a/Frameworks/regexp/src/regexp.h b/Frameworks/regexp/src/regexp.h
index 109554e8..b8f097d0 100644
--- a/Frameworks/regexp/src/regexp.h
+++ b/Frameworks/regexp/src/regexp.h
@@ -4,6 +4,8 @@
 #include <Onigmo/oniguruma.h>
 #include <oak/debug.h>
 
+#define ONIG_OPTION_NOTGPOS (ONIG_OPTION_MAXBIT << 1)
+
 namespace regexp
 {
 	typedef std::shared_ptr<regex_t> regex_ptr;