diff --git a/os/osinit.c b/os/osinit.c
index 71c943a38..3e18b51b0 100644
--- a/os/osinit.c
+++ b/os/osinit.c
@@ -54,7 +54,7 @@ SOFTWARE.
 #ifdef HAVE_DLFCN_H
 #include <dlfcn.h>
 #endif
-#ifdef HAVE_BACKTRACE
+#if defined(HAVE_BACKTRACE) && defined(HAVE_EXECINFO_H)
 #include <execinfo.h>
 #endif
 
@@ -202,7 +202,7 @@ OsInit(void)
         if (!server_poll)
             FatalError("failed to allocate poll structure");
 
-#ifdef HAVE_BACKTRACE
+#if defined(HAVE_BACKTRACE) && defined(HAVE_EXECINFO_H)
         /*
          * initialize the backtracer, since the ctor calls dlopen(), which
          * calls malloc(), which isn't signal-safe.