diff --git a/Readme.md b/Readme.md
index 627a408d256c8c440124799f5e78562a3c545753..15cda65320d8a119851c0dc8808c2dd7ae51b335 100644
--- a/Readme.md
+++ b/Readme.md
@@ -207,16 +207,16 @@ int main() {
     if( sigaction(SIGCHLD, &handleSIGCHLD, NULL) != 0 ) die("Could not set sigaction");
 
     //mask sigchld
-    sigset_t newMask_Itr;
-    sigset_t oldMask_Itr;
-    sigemptyset(&newMask_Itr);
-    sigaddset(&newMask_Itr, SIGCHLD);
-    if (sigprocmask(SIG_BLOCK, &newMask_Itr, &oldMask_Itr) == -1) die("sigprocmask");
+    sigset_t newMask;
+    sigset_t oldMask;
+    sigemptyset(&newMask);
+    sigaddset(&newMask, SIGCHLD);
+    if (sigprocmask(SIG_BLOCK, &newMask, &oldMask) == -1) die("sigprocmask");
 
     //do critical stuff
 
     //alte signal mask wiederherstellen
-    if (sigprocmask(SIG_SETMASK, &oldMask_Itr, NULL) == -1) die("sigprocmask");
+    if (sigprocmask(SIG_SETMASK, &oldMask, NULL) == -1) die("sigprocmask");
 
     pid_t pid = fork();
     if(pid < 0) die("fork");
@@ -227,9 +227,9 @@ int main() {
 
     //passives warten
     pcount = 1;
-    if (sigprocmask(SIG_BLOCK, &newMask_Itr, &oldMask_Itr) == -1) die("sigprocmask");
+    if (sigprocmask(SIG_BLOCK, &newMask, &oldMask) == -1) die("sigprocmask");
     while (pcount > 0) {
-        sigsuspend(&oldMask_Itr);
+        sigsuspend(&oldMask);
     }
 }
 
diff --git a/Zettel.html b/Zettel.html
index 8714e1a26c66a63b6c702e8c767a02b67c5c6aa9..bd9949b871f59212f44373b2abc7bbd90cef0a6c 100644
--- a/Zettel.html
+++ b/Zettel.html
@@ -195,16 +195,16 @@ accept</p>
     <span class="hljs-keyword">if</span>( sigaction(SIGCHLD, &amp;handleSIGCHLD, <span class="hljs-literal">NULL</span>) != <span class="hljs-number">0</span> ) die(<span class="hljs-string">"Could not set sigaction"</span>);
 
     <span class="hljs-comment">//mask sigchld</span>
-    <span class="hljs-keyword">sigset_t</span> newMask_Itr;
-    <span class="hljs-keyword">sigset_t</span> oldMask_Itr;
-    sigemptyset(&amp;newMask_Itr);
-    sigaddset(&amp;newMask_Itr, SIGCHLD);
-    <span class="hljs-keyword">if</span> (sigprocmask(SIG_BLOCK, &amp;newMask_Itr, &amp;oldMask_Itr) == <span class="hljs-number">-1</span>) die(<span class="hljs-string">"sigprocmask"</span>);
+    <span class="hljs-keyword">sigset_t</span> newMask;
+    <span class="hljs-keyword">sigset_t</span> oldMask;
+    sigemptyset(&amp;newMask);
+    sigaddset(&amp;newMask, SIGCHLD);
+    <span class="hljs-keyword">if</span> (sigprocmask(SIG_BLOCK, &amp;newMask, &amp;oldMask) == <span class="hljs-number">-1</span>) die(<span class="hljs-string">"sigprocmask"</span>);
 
     <span class="hljs-comment">//do critical stuff</span>
 
     <span class="hljs-comment">//alte signal mask wiederherstellen</span>
-    <span class="hljs-keyword">if</span> (sigprocmask(SIG_SETMASK, &amp;oldMask_Itr, <span class="hljs-literal">NULL</span>) == <span class="hljs-number">-1</span>) die(<span class="hljs-string">"sigprocmask"</span>);
+    <span class="hljs-keyword">if</span> (sigprocmask(SIG_SETMASK, &amp;oldMask, <span class="hljs-literal">NULL</span>) == <span class="hljs-number">-1</span>) die(<span class="hljs-string">"sigprocmask"</span>);
 
     <span class="hljs-keyword">pid_t</span> pid = fork();
     <span class="hljs-keyword">if</span>(pid &lt; <span class="hljs-number">0</span>) die(<span class="hljs-string">"fork"</span>);
@@ -215,9 +215,9 @@ accept</p>
 
     <span class="hljs-comment">//passives warten</span>
     pcount = <span class="hljs-number">1</span>;
-    <span class="hljs-keyword">if</span> (sigprocmask(SIG_BLOCK, &amp;newMask_Itr, &amp;oldMask_Itr) == <span class="hljs-number">-1</span>) die(<span class="hljs-string">"sigprocmask"</span>);
+    <span class="hljs-keyword">if</span> (sigprocmask(SIG_BLOCK, &amp;newMask, &amp;oldMask) == <span class="hljs-number">-1</span>) die(<span class="hljs-string">"sigprocmask"</span>);
     <span class="hljs-keyword">while</span> (pcount &gt; <span class="hljs-number">0</span>) {
-        sigsuspend(&amp;oldMask_Itr);
+        sigsuspend(&amp;oldMask);
     }
 }
 
diff --git a/signal.c b/signal.c
index 1b5706062e1bb1b1c219a0191e510cb35c34935c..7ef89f92001f9f9a0aede04ea2b5549a7b8f5685 100644
--- a/signal.c
+++ b/signal.c
@@ -16,16 +16,16 @@ int main() {
     if( sigaction(SIGCHLD, &handleSIGCHLD, NULL) != 0 ) die("Could not set sigaction");
 
     //mask sigchld
-    sigset_t newMask_Itr;
-    sigset_t oldMask_Itr;
-    sigemptyset(&newMask_Itr);
-    sigaddset(&newMask_Itr, SIGCHLD);
-    if (sigprocmask(SIG_BLOCK, &newMask_Itr, &oldMask_Itr) == -1) die("sigprocmask");
+    sigset_t newMask;
+    sigset_t oldMask;
+    sigemptyset(&newMask);
+    sigaddset(&newMask, SIGCHLD);
+    if (sigprocmask(SIG_BLOCK, &newMask, &oldMask) == -1) die("sigprocmask");
 
     //do critical stuff
 
     //alte signal mask wiederherstellen
-    if (sigprocmask(SIG_SETMASK, &oldMask_Itr, NULL) == -1) die("sigprocmask");
+    if (sigprocmask(SIG_SETMASK, &oldMask, NULL) == -1) die("sigprocmask");
 
     pid_t pid = fork();
     if(pid < 0) die("fork");
@@ -36,9 +36,9 @@ int main() {
 
     //passives warten
     pcount = 1;
-    if (sigprocmask(SIG_BLOCK, &newMask_Itr, &oldMask_Itr) == -1) die("sigprocmask");
+    if (sigprocmask(SIG_BLOCK, &newMask, &oldMask) == -1) die("sigprocmask");
     while (pcount > 0) {
-        sigsuspend(&oldMask_Itr);
+        sigsuspend(&oldMask);
     }
 }