diff --git a/fuzzer/Fuzzer.java b/fuzzer/Fuzzer.java
index 7e80788e33568a8a41ab863f0e992ad09d5eb887..039f23968fcb077c634e01a6a7b85aac2b97127f 100644
--- a/fuzzer/Fuzzer.java
+++ b/fuzzer/Fuzzer.java
@@ -31,7 +31,7 @@ public class Fuzzer {
                 pw.println("ADD R"+(x+1)+" R"+x +" R"+x);
             };
             pw.println("RET R31");*/
-            pw.println("JZ R0 -2"); 
+            //pw.println("JZ R0 -2"); 
             pw.println("RET R0");
  
         }catch (Exception e){
diff --git a/src/machine-vuln4.c b/src/machine-vuln4.c
index 28dd68aa8fb23cd90ea0ca3f4cd9d0d84bbf8f76..46b0e2e9bd7ccfe162e8f8df63499a5938fe478e 100644
--- a/src/machine-vuln4.c
+++ b/src/machine-vuln4.c
@@ -57,7 +57,7 @@ unsigned int count = 0; /* counts number of instructions executed so far */
 static void machine_init(void){
   memory = malloc(sizeof(int32_t)*MEMORY_SIZE);
   regs = malloc(sizeof(int32_t)*NUM_REGS);
-  //memset(memory,0,sizeof(int32_t)*MEMORY_SIZE);
+  //Zmemset(memory,0,sizeof(int32_t)*MEMORY_SIZE);
   //memset(regs,0,sizeof(int32_t)*NUM_REGS);
   count = 0;
 }
@@ -385,7 +385,7 @@ int execute(const unsigned int progLength, const int cycles, int32_t * res){
         /* this should never overflow given constraints on both pc and offs */
         pc  = pc + offs;
         count++;
-       // continue; /* avoid default increment of pc below */
+        continue; /* avoid default increment of pc below */
       }else{
         return -1;
       }