diff --git a/libmaxsi/decl/errno_values.h b/libmaxsi/decl/errno_values.h
index eaa8ddb3..dcf11822 100644
--- a/libmaxsi/decl/errno_values.h
+++ b/libmaxsi/decl/errno_values.h
@@ -25,6 +25,7 @@
 #define ENOSYS 33
 #define ENOTSUP 34
 #define EBLOCKING 35
+#define EINTR 36
 #define ELAKE 41
 
 #endif
diff --git a/libmaxsi/error.cpp b/libmaxsi/error.cpp
index 6136fde9..20bde686 100644
--- a/libmaxsi/error.cpp
+++ b/libmaxsi/error.cpp
@@ -73,6 +73,7 @@ namespace Maxsi
 				case ENOSYS: return (char*) "Function not implemented";
 				case ENOTSUP: return (char*) "Operation not supported";
 				case EBLOCKING: return (char*) "Operation is blocking";
+				case EINTR: return (char*) "Interrupted function call";
 				case ELAKE: return (char*) "Sit by a lake";
 				default: return (char*) "Unknown error condition";
 			}