diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index 2b86566..a8f7f6e 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -43,7 +43,7 @@
 int main( void )
 {
     mbedtls_printf("MBEDTLS_TIMING_C not defined.\n");
-    return( 0 );
+    mbedtls_exit( 0 );
 }
 #else
 
@@ -999,7 +999,7 @@
     fflush( stdout ); getchar();
 #endif
 
-    return( 0 );
+    mbedtls_exit( 0 );
 }
 
 #endif /* MBEDTLS_TIMING_C */
diff --git a/programs/test/udp_proxy.c b/programs/test/udp_proxy.c
index 732a7ed..3a759c0 100644
--- a/programs/test/udp_proxy.c
+++ b/programs/test/udp_proxy.c
@@ -42,6 +42,7 @@
 #define mbedtls_printf          printf
 #define mbedtls_calloc          calloc
 #define mbedtls_free            free
+#define mbedtls_exit            exit
 #define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
 #define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
 #endif /* MBEDTLS_PLATFORM_C */
@@ -50,7 +51,7 @@
 int main( void )
 {
     mbedtls_printf( "MBEDTLS_NET_C not defined.\n" );
-    return( 0 );
+    mbedtls_exit( 0 );
 }
 #else
 
@@ -964,7 +965,7 @@
     fflush( stdout ); getchar();
 #endif
 
-    return( exit_code );
+    mbedtls_exit( exit_code );
 }
 
 #endif /* MBEDTLS_NET_C */
diff --git a/programs/test/zeroize.c b/programs/test/zeroize.c
index 29cc0ac..c670a6b 100644
--- a/programs/test/zeroize.c
+++ b/programs/test/zeroize.c
@@ -42,6 +42,7 @@
 #else
 #include <stdlib.h>
 #define mbedtls_printf     printf
+#define mbedtls_exit       exit
 #define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
 #define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
 #endif
@@ -72,14 +73,14 @@
     {
         mbedtls_printf( "This program takes exactly 1 agument\n" );
         usage();
-        return( exit_code );
+        mbedtls_exit( exit_code );
     }
 
     fp = fopen( argv[1], "r" );
     if( fp == NULL )
     {
         mbedtls_printf( "Could not open file '%s'\n", argv[1] );
-        return( exit_code );
+        mbedtls_exit( exit_code );
     }
 
     while( ( c = fgetc( fp ) ) != EOF && p < end - 1 )
@@ -97,5 +98,5 @@
     fclose( fp );
     mbedtls_platform_zeroize( buf, sizeof( buf ) );
 
-    return( exit_code );
+    mbedtls_exit( exit_code );
 }