diff --git a/dev/skeletons/skeleton_script.php b/dev/skeletons/skeleton_script.php
index 877a420d6af..35904c9bfd3 100644
--- a/dev/skeletons/skeleton_script.php
+++ b/dev/skeletons/skeleton_script.php
@@ -57,7 +57,7 @@ if (! $result > 0) { dol_print_error('',$user->error); exit; }
 $user->getrights();
 
 
-print "***** ".$script_file." (".$version.") pid=".getmypid()." *****\n";
+print "***** ".$script_file." (".$version.") pid=".dol_getmypid()." *****\n";
 if (! isset($argv[1])) {	// Check parameters
     print "Usage: ".$script_file." param1 param2 ...\n";
 	exit(-1);
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index f658d2550dc..b75c7036719 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -2333,7 +2333,7 @@ function dol_print_error($db='',$error='')
 	else                              // Mode CLI
 	{
 		$out.='> '.$langs->transnoentities("ErrorInternalErrorDetected").":\n".$argv[0]."\n";
-		$syslog.="pid=".getmypid();
+		$syslog.="pid=".dol_getmypid();
 	}
 
 	if (is_object($db))
@@ -4742,18 +4742,20 @@ function dol_set_focus($selector)
 }
 
 
-if (! function_exists('getmypid'))
+/**
+ * Return getmypid() or random PID when function is disabled
+ * Some web hosts disable this php function for security reasons
+ * and sometimes we can't redeclare function
+ *
+ * @return	int
+ */
+function dol_getmypid()
 {
-	/**
-	 * Return random PID
-	 * Some web hosts disable this php function for security reasons
-	 *
-	 * @return	int
-	 */
-	function getmypid()
-	{
-		return rand(1,32768);
-	}
+    if (! function_exists('getmypid')) {
+        return rand(1,32768);
+    } else {
+        return getmypid();
+    }
 }
 
 
diff --git a/htdocs/includes/phpexcel/PHPExcel/Shared/PDF/tcpdf.php b/htdocs/includes/phpexcel/PHPExcel/Shared/PDF/tcpdf.php
index 6a155c19396..47b23913fe3 100644
--- a/htdocs/includes/phpexcel/PHPExcel/Shared/PDF/tcpdf.php
+++ b/htdocs/includes/phpexcel/PHPExcel/Shared/PDF/tcpdf.php
@@ -11427,7 +11427,7 @@ class TCPDF {
 		}
 		$seed .= uniqid('', true);
 		$seed .= rand();
-		$seed .= getmypid();
+		$seed .= dol_getmypid();
 		$seed .= __FILE__;
 		$seed .= $this->bufferlen;
 		if (isset($_SERVER['REMOTE_ADDR'])) {
diff --git a/htdocs/includes/tcpdf/include/tcpdf_static.php b/htdocs/includes/tcpdf/include/tcpdf_static.php
index 19eccc477b4..bc1e4abcc5b 100644
--- a/htdocs/includes/tcpdf/include/tcpdf_static.php
+++ b/htdocs/includes/tcpdf/include/tcpdf_static.php
@@ -1358,7 +1358,7 @@ class TCPDF_STATIC {
 		}
 		$seed .= uniqid('', true);
 		$seed .= rand();
-		$seed .= getmypid();
+		$seed .= dol_getmypid();
 		$seed .= __FILE__;
 		if (isset($_SERVER['REMOTE_ADDR'])) {
 			$seed .= $_SERVER['REMOTE_ADDR'];