diff --git a/makepanda/makepandacore.py b/makepanda/makepandacore.py
index 05385f9f54..0e887dae63 100644
--- a/makepanda/makepandacore.py
+++ b/makepanda/makepandacore.py
@@ -779,7 +779,7 @@ def GetThirdpartyDir():
########################################################################
VC90CRTVERSIONRE=re.compile("name=['\"]Microsoft.VC90.CRT['\"]\\s+version=['\"]([0-9.]+)['\"]")
-VC80CRTASSEMBLYRE=re.compile("[\t \n]*[\t \n]*[\t \n]*()?[\t \n]*[\t \n]*[\t \n]*")
+VC80CRTASSEMBLYRE=re.compile("[\t \r\n]*[\t \r\n]*[\t \r\n]*()?[\t \r\n]*[\t \r\n]*[\t \r\n]*")
VC90CRTVERSION=None
def GetVC90CRTVersion(fn = None):