diff --git a/regexec.c b/regexec.c
index c95abad258..d261a3cbc0 100644
--- a/regexec.c
+++ b/regexec.c
@@ -615,7 +615,7 @@ init_cache_index_table(regex_t* reg, OnigCacheIndex *table)
 	if (reg->repeat_range[mem].lower == 0) {
 	  table->addr = pbegin;
 	  table->num = num - current_mem_num;
-	  table->outer_repeat = mem;
+	  table->outer_repeat = -1;
 	  num++;
 	  table++;
 	}
diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index 40d3559c0b..98bf41d2f1 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -1721,6 +1721,11 @@ class TestRegexp < Test::Unit::TestCase
     end;
   end
 
+  def test_bug_19273 # [Bug #19273]
+    pattern = /(?:(?:-?b)|(?:-?(?:1_?(?:0_?)*)?0))(?::(?:(?:-?b)|(?:-?(?:1_?(?:0_?)*)?0))){0,3}/
+    assert_equal("10:0:0".match(pattern)[0], "10:0:0")
+  end
+
   def test_linear_time_p
     assert_send [Regexp, :linear_time?, /a/]
     assert_send [Regexp, :linear_time?, 'a']
diff --git a/version.h b/version.h
index 15e3afa97e..7b701b14f8 100644
--- a/version.h
+++ b/version.h
@@ -11,7 +11,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 1
+#define RUBY_PATCHLEVEL 2
 
 #include "ruby/version.h"
 #include "ruby/internal/abi.h"