diff --git a/configs/bluegene-xlc-osmesa b/configs/bluegene-xlc-osmesa
index ce923692637..b0c762de91c 100644
--- a/configs/bluegene-xlc-osmesa
+++ b/configs/bluegene-xlc-osmesa
@@ -11,7 +11,7 @@ CONFIG_NAME = bluegene-osmesa
 CC = /opt/ibmcmp/vacpp/bg/8.0/bin/blrts_xlc
 CXX = /opt/ibmcmp/vacpp/bg/8.0/bin/blrts_xlC
 CFLAGS = -O3 -pedantic -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE
-CXXFLAGS = -O3 -pedantic -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURC
+CXXFLAGS = -O3 -pedantic -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE
 
 MKLIB_OPTIONS = -static