diff --git a/halinria-dumps/Makefile b/halinria-dumps/Makefile
index 3ad4f4c..a507152 100644
--- a/halinria-dumps/Makefile
+++ b/halinria-dumps/Makefile
@@ -12,11 +12,11 @@
 
 # To set the location and the extension of sources files (queries)
 INPUT_DIR := 01-query
-INPUT_EXT := .txt
+INPUT_EXT := txt
 
 # To set the location and the extension of results files
 OUTPUT_DIR := 04-export/$(VERSION_DIR)
-OUTPUT_EXT := .tsv
+OUTPUT_EXT := tsv
 
 # To set custom aliases
 corhal-inria-2014-candidats: $(OUTPUT_DIR)/corhal-inria-2014-candidats.tsv
@@ -38,8 +38,8 @@
 
 
 # To generate all files from source directory to target directory
-SOURCE_FILES := $(wildcard $(INPUT_DIR)/*.txt)
-TARGET_FILES := $(patsubst $(INPUT_DIR)/%.txt, $(OUTPUT_DIR)/%.tsv, $(SOURCE_FILES))
+SOURCE_FILES := $(wildcard $(INPUT_DIR)/*.$(INPUT_EXT))
+TARGET_FILES := $(patsubst $(INPUT_DIR)/%.$(INPUT_EXT), $(OUTPUT_DIR)/%.$(OUTPUT_EXT), $(SOURCE_FILES))
 all: $(TARGET_FILES)
 
 # Step 2: to download all result