diff --git a/output.cc b/output.cc
index a5c7bfa1e..d1568093c 100644
--- a/output.cc
+++ b/output.cc
@@ -1486,7 +1486,7 @@ static void printosclassificationoutput(const struct
   const char *cpes[MAX_OS_CLASSMEMBERS];
   char fullfamily[MAX_OS_CLASSMEMBERS][128];    // "[vendor] [os family]"
   double familyaccuracy[MAX_OS_CLASSMEMBERS];   // highest accuracy for this fullfamily
-  char familygenerations[MAX_OS_CLASSMEMBERS][48];      // example: "4.X|5.X|6.X"
+  char familygenerations[MAX_OS_CLASSMEMBERS][96];      // example: "4.X|5.X|6.X"
   int numtypes = 0, numcpes = 0, numfamilies = 0;
   char tmpbuf[1024];