diff --git a/src/options.h b/src/options.h
index 9449fed9..6b7eb234 100644
--- a/src/options.h
+++ b/src/options.h
@@ -87,7 +87,7 @@
 
 /** Controls profiling of GC search and updates. */
 #ifndef MDBX_ENABLE_PROFGC
-#define MDBX_ENABLE_PROFGC 0
+#define MDBX_ENABLE_PROFGC 1
 #elif !(MDBX_ENABLE_PROFGC == 0 || MDBX_ENABLE_PROFGC == 1)
 #error MDBX_ENABLE_PROFGC must be defined as 0 or 1
 #endif /* MDBX_ENABLE_PROFGC */