diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index f4fa592a7f..83dad0f2dc 100644
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -51,10 +51,12 @@ $(eval $(call TestHostCommand,working-g++, \
 		g++ -x c++ -o $(TMP_DIR)/a.out - -lstdc++ && \
 		$(TMP_DIR)/a.out))
 
+ifndef IB
 $(eval $(call TestHostCommand,ncurses, \
 	Please install ncurses. (Missing libncurses.so or ncurses.h), \
 	echo 'int main(int argc, char **argv) { initscr(); return 0; }' | \
 		gcc -include ncurses.h -x c -o $(TMP_DIR)/a.out - -lncurses))
+endif
 
 ifeq ($(HOST_OS),Linux)
   zlib_link_flags := -Wl,-Bstatic -lz -Wl,-Bdynamic