diff --git a/file_utilities.c b/file_utilities.c
--- a/file_utilities.c
+++ b/file_utilities.c
@@ -1,11 +1,11 @@
 #include <file_utilities.h>
 
-int lecture_file_sm()
+int lecture_file_sm(const char * fileName)
 {
     unsigned int i;
 
     FILE *infile;
-    infile = fopen("sm_test1.dat", "rb");  // open explicitely a binary file !!! ...
+    infile = fopen(fileName, "rb");  // open explicitely a binary file !!! ...
     if(infile == NULL) {
         printf("Hello I cannot open the file!\n");
         return 0;
diff --git a/file_utilities.h b/file_utilities.h
--- a/file_utilities.h
+++ b/file_utilities.h
@@ -8,6 +8,6 @@ extern float compressed_spectral_matrix_
 extern unsigned char LFR_BP1_F0[ ];
 extern unsigned char LFR_BP2_F0[ ];
 
-int lecture_file_sm();
+int lecture_file_sm(const char *fileName);
 
 #endif // FILE_UTILITIES_H
diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -12,7 +12,7 @@ int main(void)
 {
     printf("Hello World!\n");
 
-    lecture_file_sm();
+    lecture_file_sm("sm_test1.dat");
 
     BP1_set();
 
diff --git a/tests1.pro b/tests1.pro
--- a/tests1.pro
+++ b/tests1.pro
@@ -3,6 +3,7 @@ CONFIG += console
 CONFIG -= app_bundle
 CONFIG -= qt
 
+#
 DEFINES += DEBUG_TCH
 
 SOURCES += main.c \