diff --git a/src/os/solaris/get_mib2.c b/src/os/solaris/get_mib2.c
index 7f63c908..1e4ca41a 100644
--- a/src/os/solaris/get_mib2.c
+++ b/src/os/solaris/get_mib2.c
@@ -46,6 +46,10 @@ static char copyright[] =
 #include <string.h>
 #include <unistd.h>
 
+#ifdef DMALLOC
+#include <dmalloc.h>
+#endif
+
 /*
  * close_mib2() - close MIB2 access
  *