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-rw-r--r--libguile/rw.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/rw.c b/libguile/rw.c
index 660ea2c6d..3e814740a 100644
--- a/libguile/rw.c
+++ b/libguile/rw.c
@@ -19,7 +19,7 @@
/* This is the C part of the (ice-9 rw) module. */
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
# include <config.h>
#endif