diff --git a/src/bin/finddir.c b/src/bin/finddir.c
index 7e5c423cb6..329ff78a20 100644
--- a/src/bin/finddir.c
+++ b/src/bin/finddir.c
@@ -130,6 +130,26 @@ directoryType directoryTypes[] = {
 	KEYVALUE_PAIR(B_BEOS_SOUNDS_DIRECTORY),
 	KEYVALUE_PAIR(B_BEOS_DATA_DIRECTORY),
 
+	// Legacy "common" directories, for BeOS compatibility only.
+	{"B_COMMON_DIRECTORY", B_SYSTEM_NONPACKAGED_DIRECTORY},
+	{"B_COMMON_SYSTEM_DIRECTORY", B_SYSTEM_NONPACKAGED_DIRECTORY},
+	{"B_COMMON_ADDONS_DIRECTORY", B_SYSTEM_NONPACKAGED_ADDONS_DIRECTORY},
+	{"B_COMMON_BIN_DIRECTORY", B_SYSTEM_NONPACKAGED_BIN_DIRECTORY},
+	{"B_COMMON_DEVELOP_DIRECTORY", B_SYSTEM_NONPACKAGED_DEVELOP_DIRECTORY},
+	{"B_COMMON_DOCUMENTATION_DIRECTORY",
+		B_SYSTEM_NONPACKAGED_DOCUMENTATION_DIRECTORY},
+	{"B_COMMON_FONTS_DIRECTORY",B_SYSTEM_NONPACKAGED_FONTS_DIRECTORY},
+	{"B_COMMON_LIB_DIRECTORY", B_SYSTEM_NONPACKAGED_LIB_DIRECTORY},
+
+	{"B_COMMON_BOOT_DIRECTORY", B_SYSTEM_BOOT_DIRECTORY},
+	{"B_COMMON_ETC_DIRECTORY", B_SYSTEM_ETC_DIRECTORY},
+	{"B_COMMON_LOG_DIRECTORY", B_SYSTEM_LOG_DIRECTORY},
+	{"B_COMMON_SERVERS_DIRECTORY", B_SYSTEM_SERVERS_DIRECTORY},
+	{"B_COMMON_SETTINGS_DIRECTORY", B_SYSTEM_SETTINGS_DIRECTORY},
+	{"B_COMMON_SPOOL_DIRECTORY", B_SYSTEM_SPOOL_DIRECTORY},
+	{"B_COMMON_TEMP_DIRECTORY", B_SYSTEM_TEMP_DIRECTORY},
+	{"B_COMMON_VAR_DIRECTORY", B_SYSTEM_VAR_DIRECTORY},
+
 	{NULL, B_USER_DESKBAR_DIRECTORY}
 };