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-rw-r--r--src/cidr.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cidr.cpp b/src/cidr.cpp
index 333875665..b245a1552 100644
--- a/src/cidr.cpp
+++ b/src/cidr.cpp
@@ -68,7 +68,7 @@ bool irc::sockets::MatchCIDR(const std::string &address, const std::string &cidr
const std::string::size_type per_pos = cidr_copy.rfind('/');
if ((per_pos == std::string::npos) || (per_pos == cidr_copy.length()-1)
|| (cidr_copy.find_first_not_of("0123456789", per_pos+1) != std::string::npos)
- || (cidr_copy.find_first_not_of("0123456789abcdef.:") < per_pos))
+ || (cidr_copy.find_first_not_of("0123456789abcdefABCDEF.:") < per_pos))
{
// The CIDR mask is invalid
return false;