diff --git a/main/strcompat.c b/main/strcompat.c
index 38643fdd52..f6e3bfa072 100644
--- a/main/strcompat.c
+++ b/main/strcompat.c
@@ -25,9 +25,12 @@
 #include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <alloca.h>
 #include <string.h>
 
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
+
 #ifndef HAVE_STRSEP
 char *strsep(char **str, const char *delims)
 {