diff --git a/NLP_tools-EZmaster/public/v1/en/ner/analyze.ini b/NLP_tools-EZmaster/public/v1/en/ner/analyze.ini
index 7fc9d87..9501bb7 100644
--- a/NLP_tools-EZmaster/public/v1/en/ner/analyze.ini
+++ b/NLP_tools-EZmaster/public/v1/en/ner/analyze.ini
@@ -37,7 +37,7 @@
 args = fix('-lang')
 args = en
 args = fix('-param')
-args = env('param',' ')
+args = env('param','{}')
 
 [dump]
 indent = env('indent', false)
diff --git a/NLP_tools-EZmaster/public/v1/en/npchunker/analyze.ini b/NLP_tools-EZmaster/public/v1/en/npchunker/analyze.ini
index 8067dfc..68213fe 100644
--- a/NLP_tools-EZmaster/public/v1/en/npchunker/analyze.ini
+++ b/NLP_tools-EZmaster/public/v1/en/npchunker/analyze.ini
@@ -37,7 +37,7 @@
 args = fix('-lang')
 args = en
 args = fix('-param')
-args = env('param',' ')
+args = env('param','{}')
 
 [dump]
 indent = env('indent', false)
diff --git a/NLP_tools-EZmaster/public/v1/en/npchunkerdp/analyze.ini b/NLP_tools-EZmaster/public/v1/en/npchunkerdp/analyze.ini
index 8f458be..8456cb8 100644
--- a/NLP_tools-EZmaster/public/v1/en/npchunkerdp/analyze.ini
+++ b/NLP_tools-EZmaster/public/v1/en/npchunkerdp/analyze.ini
@@ -37,7 +37,7 @@
 args = fix('-lang')
 args = en
 args = fix('-param')
-args = env('param',' ')
+args = env('param','{}')
 
 [dump]
 indent = env('indent', false)
diff --git a/NLP_tools-EZmaster/public/v1/en/stemmer/analyze.ini b/NLP_tools-EZmaster/public/v1/en/stemmer/analyze.ini
index 5c4b8cc..c426baf 100644
--- a/NLP_tools-EZmaster/public/v1/en/stemmer/analyze.ini
+++ b/NLP_tools-EZmaster/public/v1/en/stemmer/analyze.ini
@@ -37,7 +37,7 @@
 args = fix('-lang')
 args = en
 args = fix('-param')
-args = env('param',' ')
+args = env('param','{}')
 
 [dump]
 indent = env('indent', false)
diff --git a/NLP_tools-EZmaster/public/v1/en/termmatcher/analyze.ini b/NLP_tools-EZmaster/public/v1/en/termmatcher/analyze.ini
index 3bc0114..7d4a5d8 100644
--- a/NLP_tools-EZmaster/public/v1/en/termmatcher/analyze.ini
+++ b/NLP_tools-EZmaster/public/v1/en/termmatcher/analyze.ini
@@ -37,7 +37,7 @@
 args = fix('-lang')
 args = en
 args = fix('-param')
-args = env('param',' ')
+args = env('param','{}')
 
 [dump]
 indent = env('indent', false)
diff --git a/NLP_tools-EZmaster/public/v1/fr/postagger/analyze.ini b/NLP_tools-EZmaster/public/v1/fr/postagger/analyze.ini
index 00bbea2..5f27a83 100644
--- a/NLP_tools-EZmaster/public/v1/fr/postagger/analyze.ini
+++ b/NLP_tools-EZmaster/public/v1/fr/postagger/analyze.ini
@@ -37,7 +37,7 @@
 args = fix('-lang')
 args = fr
 args = fix('-param')
-args = env('param',' ')
+args = env('param','{}')
 
 [dump]
 indent = env('indent', false)
diff --git a/NLP_tools-EZmaster/public/v1/fr/stemmer/analyze.ini b/NLP_tools-EZmaster/public/v1/fr/stemmer/analyze.ini
index d80058a..8ceade5 100644
--- a/NLP_tools-EZmaster/public/v1/fr/stemmer/analyze.ini
+++ b/NLP_tools-EZmaster/public/v1/fr/stemmer/analyze.ini
@@ -37,7 +37,7 @@
 args = fix('-lang')
 args = fr
 args = fix('-param')
-args = env('param',' ')
+args = env('param','{}')
 
 [dump]
 indent = env('indent', false)