diff --git a/OpenCL/m03200-pure.cl b/OpenCL/m03200-pure.cl
index 5f701666f..7d874c130 100644
--- a/OpenCL/m03200-pure.cl
+++ b/OpenCL/m03200-pure.cl
@@ -300,6 +300,15 @@ CONSTANT_VK u32a c_sbox3[256] =
   0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6
 };
 
+CONSTANT_VK u32a c_pbox[18] =
+{
+  0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
+  0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
+  0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+  0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
+  0x9216d5d9, 0x8979fb1b
+};
+
 #define BF_ROUND(L,R,N)                       \
 {                                             \
   u32 tmp;                                    \
@@ -440,9 +449,12 @@ KERNEL_FQ void __attribute__((reqd_work_group_size(FIXED_LOCAL_SIZE, 1, 1))) m03
   salt_buf[2] = salt_bufs[salt_pos].salt_buf[2];
   salt_buf[3] = salt_bufs[salt_pos].salt_buf[3];
 
-  /**
-   * do the key setup
-   */
+  u32 P[18];
+
+  for (u32 i = 0; i < 18; i++)
+  {
+    P[i] = c_pbox[i];
+  }
 
   LOCAL_VK u32 S0_all[FIXED_LOCAL_SIZE][256];
   LOCAL_VK u32 S1_all[FIXED_LOCAL_SIZE][256];
@@ -454,17 +466,6 @@ KERNEL_FQ void __attribute__((reqd_work_group_size(FIXED_LOCAL_SIZE, 1, 1))) m03
   LOCAL_AS u32 *S2 = S2_all[lid];
   LOCAL_AS u32 *S3 = S3_all[lid];
 
-  // initstate
-
-  u32 P[18] =
-  {
-    0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
-    0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
-    0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
-    0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
-    0x9216d5d9, 0x8979fb1b
-  };
-
   for (u32 i = 0; i < 256; i++)
   {
     S0[i] = c_sbox0[i];
diff --git a/docs/changes.txt b/docs/changes.txt
index 711e1407d..d11b9d156 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -56,6 +56,7 @@
 ## Improvements
 ##
 
+- Startup Checks: Improved the pidfile check: Do not just check for existing PID but also check executable filename
 - Cracking bcrypt and Password Safe v2: Use a feedback from the OpenCL runtime to dynamically find out optimal thread count
 - Bitcoin Wallet: Be more user friendly by allowing a larger data range for ckey and public_key
 - Building: Updated BUILD.md
diff --git a/src/backend.c b/src/backend.c
index 4c19b24fa..3d56ab9d8 100644
--- a/src/backend.c
+++ b/src/backend.c
@@ -1302,13 +1302,13 @@ int hc_cuModuleLoadDataExLog (hashcat_ctx_t *hashcat_ctx, CUmodule *module, cons
   const int rc_cuModuleLoadDataEx = hc_cuModuleLoadDataEx (hashcat_ctx, module, image, 6, opts, vals);
 
   #if defined (DEBUG)
-  printf ("cuModuleLoadDataEx() Info Log (%ld):\n%s\n\n", strlen (info_log), info_log);
-  printf ("cuModuleLoadDataEx() Error Log (%ld):\n%s\n\n", strlen (error_log), error_log);
+  printf ("cuModuleLoadDataEx() Info Log (%d):\n%s\n\n",  (int) strlen (info_log),  info_log);
+  printf ("cuModuleLoadDataEx() Error Log (%d):\n%s\n\n", (int) strlen (error_log), error_log);
   #else
   if (rc_cuModuleLoadDataEx == -1)
   {
-    printf ("cuModuleLoadDataEx() Info Log (%ld):\n%s\n\n", strlen (info_log), info_log);
-    printf ("cuModuleLoadDataEx() Error Log (%ld):\n%s\n\n", strlen (error_log), error_log);
+    printf ("cuModuleLoadDataEx() Info Log (%d):\n%s\n\n",  (int) strlen (info_log),  info_log);
+    printf ("cuModuleLoadDataEx() Error Log (%d):\n%s\n\n", (int) strlen (error_log), error_log);
   }
   #endif
 
diff --git a/src/pidfile.c b/src/pidfile.c
index 8654d41a8..a366d48ae 100644
--- a/src/pidfile.c
+++ b/src/pidfile.c
@@ -72,17 +72,46 @@ static int check_running_process (hashcat_ctx_t *hashcat_ctx)
 
     char *pidbin;
 
-    hc_asprintf (&pidbin, "/proc/%u/cmdline", pd->pid);
+    hc_asprintf (&pidbin, "/proc/%u/exe", pd->pid);
 
     if (hc_path_exist (pidbin) == true)
     {
-      event_log_error (hashcat_ctx, "Already an instance running on pid %u", pd->pid);
+      // pid info
+
+      char *pidexe = (char *) hcmalloc (HCBUFSIZ_TINY);
+
+      const ssize_t pidexe_len = readlink (pidbin, pidexe, HCBUFSIZ_TINY - 1);
+
+      pidexe[pidexe_len] = 0;
+
+      // self info
+
+      char *selfexe = (char *) hcmalloc (HCBUFSIZ_TINY);
+
+      const ssize_t selfexe_len = readlink ("/proc/self/exe", selfexe, HCBUFSIZ_TINY - 1);
+
+      selfexe[selfexe_len] = 0;
+
+      // compare
+
+      const int r = strncmp (pidexe, selfexe, selfexe_len);
+
+      if (r == 0)
+      {
+        event_log_error (hashcat_ctx, "Already an instance '%s' running on pid %u", pidexe, pd->pid);
+      }
+
+      hcfree (selfexe);
+
+      hcfree (pidexe);
 
       hcfree (pd);
 
       hcfree (pidbin);
 
-      return -1;
+      if (r == 0) return -1;
+
+      return 0;
     }
 
     hcfree (pidbin);