diff --git a/include/compat/freebsd/alloca.h b/include/compat/freebsd/alloca.h
index c8b49f2..c1acc38 100644
--- a/include/compat/freebsd/alloca.h
+++ b/include/compat/freebsd/alloca.h
@@ -1 +1,5 @@
+#if BX_CRT_GLIBC
+#include_next <alloca.h>
+#else
 #include <stdlib.h>
+#endif
diff --git a/include/compat/freebsd/signal.h b/include/compat/freebsd/signal.h
index fd7d90f..deb07d2 100644
--- a/include/compat/freebsd/signal.h
+++ b/include/compat/freebsd/signal.h
@@ -1 +1,5 @@
+#ifdef BX_CRT_GLIBC
+#include_next <signal.h>
+#else
 #include <sys/signal.h>
+#endif