diff --git a/src/coparun/runmem.c b/src/coparun/runmem.c
index 8fd5208..2020c33 100644
--- a/src/coparun/runmem.c
+++ b/src/coparun/runmem.c
@@ -12,6 +12,7 @@
     #define BLOG(...) printf(__VA_ARGS__)
 #else
     #define LOG(...)
+    #define BLOG(...)
 #endif
 
 /* Globals declared extern in runmem.h */