diff --git a/src/pair_hybrid.cpp b/src/pair_hybrid.cpp
index c23d694275a3d5d08e8e242cc2d13877c6918d66..206782be2715d7b293c71f1f86a597ddf009ea7e 100644
--- a/src/pair_hybrid.cpp
+++ b/src/pair_hybrid.cpp
@@ -195,10 +195,11 @@ void PairHybrid::settings(int narg, char **arg)
   allocated = 0;
 
   // count sub-styles by skipping numeric args
-  // exception is 1st arg of style "table", which is non-numeric word
-  // exception is 1st two args of style "lj/coul", which are non-numeric
-  // exception is 1st two args of style "buck/coul", which are non-numeric
+  // exception is 1st arg of table style, which is non-numeric word
+  // exception is 1st two args of lj/coul style, which are non-numeric
+  // exception is 1st two args of buck/coul, which are non-numeric
   // exception is 1st arg of reax/c style, which is non-numeric
+  // execption is 1st 6 args of gran styles, which can have NULLs
   // need a better way to skip these exceptions
 
   nstyles = 0;
@@ -208,6 +209,8 @@ void PairHybrid::settings(int narg, char **arg)
     if (strcmp(arg[i],"lj/coul") == 0) i += 2;
     if (strcmp(arg[i],"buck/coul") == 0) i += 2;
     if (strcmp(arg[i],"reax/c") == 0) i++;
+    if (strstr(arg[i],"gran/hooke")) i += 6;
+    if (strstr(arg[i],"gran/hertz")) i += 6;
     i++;
     while (i < narg && !isalpha(arg[i][0])) i++;
     nstyles++;
@@ -220,10 +223,11 @@ void PairHybrid::settings(int narg, char **arg)
 
   // allocate each sub-style and call its settings() with subset of args
   // define subset of args for a sub-style by skipping numeric args
-  // exception is 1st arg of style "table", which is non-numeric
-  // exception is 1st two args of style "lj/coul", which are non-numeric
-  // exception is 1st two args of style "buck/coul", which are non-numeric
+  // exception is 1st arg of table style, which is non-numeric word
+  // exception is 1st two args of lj/coul style, which are non-numeric
+  // exception is 1st two args of buck/coul, which are non-numeric
   // exception is 1st arg of reax/c style, which is non-numeric
+  // execption is 1st 6 args of gran styles, which can have NULLs
   // need a better way to skip these exceptions
 
   int dummy;
@@ -246,6 +250,8 @@ void PairHybrid::settings(int narg, char **arg)
     if (strcmp(arg[i],"lj/coul") == 0) i += 2;
     if (strcmp(arg[i],"buck/coul") == 0) i += 2;
     if (strcmp(arg[i],"reax/c") == 0) i++;
+    if (strstr(arg[i],"gran/hooke")) i += 6;
+    if (strstr(arg[i],"gran/hertz")) i += 6;
     i++;
     while (i < narg && !isalpha(arg[i][0])) i++;
     styles[nstyles]->settings(i-istyle-1,&arg[istyle+1]);