diff --git a/headers/os/BeBuild.h b/headers/os/BeBuild.h
index 3bf2acfdba..5a34a95259 100644
--- a/headers/os/BeBuild.h
+++ b/headers/os/BeBuild.h
@@ -45,10 +45,10 @@
 
 #if __GNUC__ == 2
 #	define B_HAIKU_ABI					B_HAIKU_ABI_GCC_2_HAIKU
-#elif __GNUC__ >= 4 && __GNUC__ <= 8
+#elif (__GNUC__ >= 4 && __GNUC__ <= 8) || defined(__TINYC__)
 #	define B_HAIKU_ABI					B_HAIKU_ABI_GCC_4
 #else
-#	error Unsupported gcc version!
+#	error Unsupported compiler!
 #endif