diff --git a/headers/os/BeBuild.h b/headers/os/BeBuild.h
index f99212bd72..c09d8cdd97 100644
--- a/headers/os/BeBuild.h
+++ b/headers/os/BeBuild.h
@@ -47,7 +47,7 @@
 
 #if __GNUC__ == 2
 #	define B_HAIKU_ABI					B_HAIKU_ABI_GCC_2_HAIKU
-#elif (__GNUC__ >= 4 && __GNUC__ <= 8) || defined(__TINYC__)
+#elif (__GNUC__ >= 4 && __GNUC__ <= 9) || defined(__TINYC__)
 #	define B_HAIKU_ABI					B_HAIKU_ABI_GCC_4
 #else
 #	error Unsupported compiler!