diff --git a/tests/suites/helpers.function b/tests/suites/helpers.function
index cad7072..4c3a235 100644
--- a/tests/suites/helpers.function
+++ b/tests/suites/helpers.function
@@ -1,3 +1,4 @@
+#line 1 "helpers.function"
 /*----------------------------------------------------------------------------*/
 /* Headers */
 
diff --git a/tests/suites/main_test.function b/tests/suites/main_test.function
index 7fee3d8..948f72e 100644
--- a/tests/suites/main_test.function
+++ b/tests/suites/main_test.function
@@ -1,4 +1,5 @@
 SUITE_PRE_DEP
+#line !LINE_NO! "main_test.function"
 #define TEST_SUITE_ACTIVE
 
 int verify_string( char **str )
@@ -69,6 +70,7 @@
 
 FUNCTION_CODE
 SUITE_POST_DEP
+#line !LINE_NO! "main_test.function"
 
 
 /*----------------------------------------------------------------------------*/
@@ -80,6 +82,7 @@
         return( 1 );
 
 DEP_CHECK_CODE
+#line !LINE_NO! "main_test.function"
 
     return( 1 );
 }
@@ -93,6 +96,7 @@
 #if defined(TEST_SUITE_ACTIVE)
 DISPATCH_FUNCTION
     {
+#line !LINE_NO! "main_test.function"
         mbedtls_fprintf( stdout, "FAILED\nSkipping unknown test function '%s'\n", params[0] );
         fflush( stdout );
         return( 1 );