1 files changed, 1 insertions, 1 deletions

diff --git a/src/Makefile.frag b/src/Makefile.frag
index e110544..454ba60 100644
--- a/src/Makefile.frag
+++ b/src/Makefile.frag
@@ -1,5 +1,5 @@
 $(srcdir)/sp_config_scanner.c: $(srcdir)/sp_config_scanner.re
-        if re2c -v |grep ' 2\.' 2>/dev/null; then \
+        if re2c -v |grep ' [23]\.' 2>/dev/null; then \
                 re2c -bc -o $@ $<; \
                 re2c --no-generation-date --no-version -bci -o $(srcdir)/sp_config_scanner.cached.c $<; \
         else \