diff --git a/pokerth_game.pro b/pokerth_game.pro
index 2a327e36..c9103b4d 100644
--- a/pokerth_game.pro
+++ b/pokerth_game.pro
@@ -446,6 +446,7 @@ mac {
     # make sure you have a universal version of boost
     LIBS += /usr/local/lib/libboost_thread-xgcc40-mt.a
     LIBS += /usr/local/lib/libboost_filesystem-xgcc40-mt.a
+    LIBS += /usr/local/lib/libboost_regex-xgcc40-mt.a
     LIBS += /usr/local/lib/libboost_system-xgcc40-mt.a
     LIBS += /usr/local/lib/libboost_iostreams-xgcc40-mt.a
     # libraries installed on every mac
diff --git a/pokerth_server.pro b/pokerth_server.pro
index a2535802..522de319 100644
--- a/pokerth_server.pro
+++ b/pokerth_server.pro
@@ -260,6 +260,7 @@ mac {
     # make sure you have a universal version of boost
     LIBS += /usr/local/lib/libboost_thread-xgcc40-mt.a
     LIBS += /usr/local/lib/libboost_filesystem-xgcc40-mt.a
+    LIBS += /usr/local/lib/libboost_regex-xgcc40-mt.a
     LIBS += /usr/local/lib/libboost_system-xgcc40-mt.a
     LIBS += /usr/local/lib/libboost_iostreams-xgcc40-mt.a
     LIBS += /usr/local/lib/libboost_program_options-xgcc40-mt.a