diff --git a/m4/reorganization/libmspack.m4 b/m4/reorganization/libmspack.m4
index 96c6e9202..5c63d2b20 100644
--- a/m4/reorganization/libmspack.m4
+++ b/m4/reorganization/libmspack.m4
@@ -3,7 +3,7 @@ m4_include([libclamav/libmspack-0.5alpha/m4/libmspack-opts.m4])
 if test "x$system_libmspack" = "xno"; then
     use_internal_mspack=yes
     AM_CONDITIONAL([USE_INTERNAL_MSPACK], test TRUE)
-    CLFAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64"
+    CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64"
 else
     PKG_CHECK_MODULES([LIBMSPACK], [libmspack],
                         use_internal_mspack=no, use_internal_mspack=yes)