diff --git a/win32/build/Makefile b/win32/build/Makefile
index a0811aedf1522..d249efa1be5d7 100644
--- a/win32/build/Makefile
+++ b/win32/build/Makefile
@@ -30,6 +30,7 @@ build_dirs: $(BUILD_DIR) $(BUILD_DIRS_SUB)
 generated_files: build_dirs Zend\zend_ini_parser.c \
 	Zend\zend_language_parser.c Zend\zend_ini_scanner.c \
 	Zend\zend_language_scanner.c \
+	ext\standard\parsedate.c \
 	$(PHPDEF) $(MCFILE)
 
 $(BUILD_DIR)\$(PHPDLL).def: $(PHP_DLL_DEF_SOURCES)
@@ -47,6 +48,9 @@ Zend\zend_ini_scanner.c: Zend\flex.skl Zend\zend_ini_scanner.l
 Zend\zend_language_scanner.c: Zend\flex.skl Zend\zend_language_scanner.l
 	$(FLEX) -i -SZend/flex.skl -Pzend -oZend/zend_language_scanner.c Zend/zend_language_scanner.l
 
+ext\standard\parsedate.c ext\standard\parsedate.h: ext\standard\parsedate.y
+	$(BISON) --output=ext/standard/parsedate.c -v -d ext/standard/parsedate.y 
+
 PHPDLL_RES=$(BUILD_DIR)\$(PHPDLL).res
 
 $(MCFILE): win32\build\wsyslog.mc