diff --git a/src/input.cpp b/src/input.cpp
index b24e9d1345..3ec89cd44b 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -52,7 +52,7 @@
 
 using namespace LAMMPS_NS;
 
-#define MAXLINE 2048
+#define MAXLINE 8192
 #define DELTA 4
 
 /* ---------------------------------------------------------------------- */