diff --git a/src/ip_utils.h b/src/ip_utils.h
index deba8be270881ad419625436a79c199d3daab48c..87e48af7cbdcd2570adba9989abb7f23f816165c 100644
--- a/src/ip_utils.h
+++ b/src/ip_utils.h
@@ -21,6 +21,8 @@
 #ifndef IP_UTILS_H_
 #define IP_UTILS_H_
 
+#include <sstream> // include before pjlib.h to fix macros issues with pjlib.h
+
 extern "C" {
 #include <pjlib.h>
 }