diff --git a/configure b/configure
index 31ad69e..fa898ca 100755
--- a/configure
+++ b/configure
@@ -1167,7 +1167,7 @@ if [ -z "${TURN_NO_SCTP}" ] ; then
     	if [ -z "${TURN_SCTP_INCLUDE}" ] ; then
 			TURN_NO_SCTP="-DTURN_NO_SCTP"
 		else
-			TURN_SCTP_INCLUDE="-DTURN_SCTP_INCLUDE=${TURN_SCTP_INCLUDE}"
+			TURN_SCTP_INCLUDE="-DTURN_SCTP_INCLUDE=\"\\\"${TURN_SCTP_INCLUDE}\\\"\""
     	fi
     fi
 else
diff --git a/src/apps/relay/ns_ioalib_engine_impl.c b/src/apps/relay/ns_ioalib_engine_impl.c
index 94f28fd..7622d97 100644
--- a/src/apps/relay/ns_ioalib_engine_impl.c
+++ b/src/apps/relay/ns_ioalib_engine_impl.c
@@ -51,9 +51,7 @@
 #endif
 
 #if !defined(TURN_NO_SCTP) && defined(TURN_SCTP_INCLUDE)
-#define Q(x) #x
-#define QUOTE(x) Q(x)
-#include QUOTE(TURN_SCTP_INCLUDE)
+#include TURN_SCTP_INCLUDE
 #endif
 
 /* Compilation test: