diff --git a/headers/os/BeBuild.h b/headers/os/BeBuild.h
index cc4ae14c23..f55b43d1b4 100644
--- a/headers/os/BeBuild.h
+++ b/headers/os/BeBuild.h
@@ -24,8 +24,6 @@
 #define B_HAIKU_VERSION_1_PRE_ALPHA_2	0x00000101
 #define B_HAIKU_VERSION_1_ALPHA_2		0x00000200
 #define B_HAIKU_VERSION_1_PRE_ALPHA_3	0x00000201
-#define B_HAIKU_VERSION_1_ALPHA_3		0x00000300
-#define B_HAIKU_VERSION_1_PRE_ALPHA_4	0x00000301
 #define B_HAIKU_VERSION_1				0x00010000
 
 #define B_HAIKU_VERSION					B_HAIKU_VERSION_1_PRE_ALPHA_3