diff --git a/headers/os/BeBuild.h b/headers/os/BeBuild.h
index e5826a6d8f..6bf1fbbc06 100644
--- a/headers/os/BeBuild.h
+++ b/headers/os/BeBuild.h
@@ -17,11 +17,11 @@
 #define B_HAIKU_VERSION_BEOS			0x00000001
 #define B_HAIKU_VERSION_BONE			0x00000002
 #define B_HAIKU_VERSION_DANO			0x00000003
-#define B_HAIKU_VERSION_1_PRE_ALPHA_1	0x00000011
 #define B_HAIKU_VERSION_1_ALPHA_1		0x00000100
+#define B_HAIKU_VERSION_1_PRE_ALPHA_2	0x00000101
 #define B_HAIKU_VERSION_1				0x00010000
 
-#define B_HAIKU_VERSION					B_HAIKU_VERSION_1_PRE_ALPHA_1
+#define B_HAIKU_VERSION					B_HAIKU_VERSION_1_PRE_ALPHA_2
 
 /* Haiku ABI */
 #define B_HAIKU_ABI_MAJOR				0xffff0000