diff --git a/src/basic-config.h b/src/basic-config.h
index 1326bf7c0e6c1..6f7693cb8fd04 100644
--- a/src/basic-config.h
+++ b/src/basic-config.h
@@ -10,6 +10,7 @@
 #ifdef USE_BASIC_CONFIG
 
 #define ECMULT_WINDOW_SIZE 15
+#define ECMULT_GEN_PREC_BITS 4
 
 #endif /* USE_BASIC_CONFIG */