diff --git a/src/report/locale-specific/us/Makefile.am b/src/report/locale-specific/us/Makefile.am
index d1bc94d6ff..7043851dc9 100644
--- a/src/report/locale-specific/us/Makefile.am
+++ b/src/report/locale-specific/us/Makefile.am
@@ -7,7 +7,7 @@ libgncmod_locale_reports_us_la_SOURCES = \
 
 libgncmod_locale_reports_us_la_LDFLAGS = -module
 
-INCLUDES = -I${top_srcdir}/src/gnc-module ${GLIB_CFLAGS}
+CFLAGS = @CFLAGS@ -I${top_srcdir}/src/gnc-module ${GUILE_INCS} ${GLIB_CFLAGS}
 
 .scm-links:
 	rm -f gnucash report locale-specific us