diff --git a/configure.in b/configure.in
index 9c15e3cc2d..49c2c15db4 100644
--- a/configure.in
+++ b/configure.in
@@ -532,7 +532,7 @@ if test x${HBCI_DIR} = xhbci ;
 then
     AM_PATH_OPENHBCI(0.9.6)
     HBCI_LIBS="${OPENHBCI_LIBS}"
-    HBCI_CFLAGS="${OPENHBCI_CXXFLAGS}"
+    HBCI_CFLAGS="${OPENHBCI_CFLAGS}"
 
     AS_SCRUB_INCLUDE(HBCI_CFLAGS)
     AC_SUBST(HBCI_LIBS)