diff --git a/embed/boardloader/main.c b/embed/boardloader/main.c
index dc9a512f1..78f8f79c9 100644
--- a/embed/boardloader/main.c
+++ b/embed/boardloader/main.c
@@ -151,13 +151,13 @@ int main(void)
     clear_otg_hs_memory();
     periph_init();
 
-    trassert(0 == display_init(), NULL);
-    trassert(0 == flash_init(), NULL);
-    trassert(0 == sdcard_init(), NULL);
+    ensure(0 == display_init(), NULL);
+    ensure(0 == flash_init(), NULL);
+    ensure(0 == sdcard_init(), NULL);
 
     if (check_sdcard()) {
         if (!copy_sdcard()) {
-            trassert(true == copy_sdcard(), NULL);
+            ensure(true == copy_sdcard(), NULL);
         } else {
             for (;;);
         }
@@ -165,7 +165,7 @@ int main(void)
 
     check_and_jump();
 
-    trassert(0, "halt");
+    ensure(0, "halt");
 
     return 0;
 }
diff --git a/embed/bootloader/main.c b/embed/bootloader/main.c
index e76787a0e..4166ed466 100644
--- a/embed/bootloader/main.c
+++ b/embed/bootloader/main.c
@@ -128,17 +128,17 @@ int usb_init_all(void) {
         .report_desc      = hid_report_desc,
     };
 
-    trassert(0 == usb_init(&dev_info), NULL);
-    trassert(0 == usb_hid_add(&hid_info), NULL);
-    trassert(0 == usb_start(), NULL);
+    ensure(0 == usb_init(&dev_info), NULL);
+    ensure(0 == usb_hid_add(&hid_info), NULL);
+    ensure(0 == usb_start(), NULL);
 
     return 0;
 }
 
 void mainloop(void)
 {
-    trassert(0 == flash_init(), NULL);
-    trassert(0 == usb_init_all(), NULL);
+    ensure(0 == flash_init(), NULL);
+    ensure(0 == usb_init_all(), NULL);
 
     display_clear();
 
@@ -149,7 +149,7 @@ void mainloop(void)
         if (r != USB_PACKET_SIZE) {
             continue;
         }
-        trassert(r == USB_PACKET_SIZE, NULL);
+        ensure(r == USB_PACKET_SIZE, NULL);
         uint16_t msg_id;
         uint32_t msg_size;
         if (!msg_parse_header(buf, &msg_id, &msg_size)) {
@@ -190,12 +190,12 @@ void check_bootloader_version(void)
              bits[i / 8] |= (1 << (7 - (i % 8)));
         }
     }
-    trassert(true == flash_otp_write(BOOTLOADER_VERSION_OTP_BLOCK, 0, bits, FLASH_OTP_BLOCK_SIZE), NULL);
+    ensure(true == flash_otp_write(BOOTLOADER_VERSION_OTP_BLOCK, 0, bits, FLASH_OTP_BLOCK_SIZE), NULL);
 
     uint8_t bits2[FLASH_OTP_BLOCK_SIZE];
-    trassert(true == flash_otp_read(BOOTLOADER_VERSION_OTP_BLOCK, 0, bits2, FLASH_OTP_BLOCK_SIZE), NULL);
+    ensure(true == flash_otp_read(BOOTLOADER_VERSION_OTP_BLOCK, 0, bits2, FLASH_OTP_BLOCK_SIZE), NULL);
 
-    trassert(0 == memcmp(bits, bits2, FLASH_OTP_BLOCK_SIZE), "Bootloader downgraded");
+    ensure(0 == memcmp(bits, bits2, FLASH_OTP_BLOCK_SIZE), "Bootloader downgraded");
 }
 
 int main(void)
@@ -212,7 +212,7 @@ int main(void)
     display_orientation(0);
     display_backlight(255);
 
-    trassert(0 == touch_init(), NULL);
+    ensure(0 == touch_init(), NULL);
 
     uint32_t touched = 0;
     for (int i = 0; i < 10; i++) {
@@ -225,7 +225,7 @@ int main(void)
         check_and_jump();
     }
 
-    trassert(0, "halt");
+    ensure(0, "halt");
 
     return 0;
 }
diff --git a/embed/extmod/modtrezorutils/modtrezorutils.c b/embed/extmod/modtrezorutils/modtrezorutils.c
index 2e809c844..a5ffdf2f2 100644
--- a/embed/extmod/modtrezorutils/modtrezorutils.c
+++ b/embed/extmod/modtrezorutils/modtrezorutils.c
@@ -86,9 +86,9 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorutils_memcpy_obj, 5, 5, mod
 STATIC mp_obj_t mod_trezorutils_halt(size_t n_args, const mp_obj_t *args) {
     mp_buffer_info_t msg;
     if (n_args > 0 && mp_get_buffer(args[0], &msg, MP_BUFFER_READ)) {
-        trassert(0, msg.buf);
+        ensure(0, msg.buf);
     } else {
-        trassert(0, "halt");
+        ensure(0, "halt");
     }
     return mp_const_none;
 }
diff --git a/embed/firmware/main.c b/embed/firmware/main.c
index b62d45fea..66b2ada2b 100644
--- a/embed/firmware/main.c
+++ b/embed/firmware/main.c
@@ -33,9 +33,9 @@ int main(void)
     display_orientation(0);
     display_backlight(255);
 
-    trassert(0 == flash_init(), NULL);
-    trassert(0 == sdcard_init(), NULL);
-    trassert(0 == touch_init(), NULL);
+    ensure(0 == flash_init(), NULL);
+    ensure(0 == sdcard_init(), NULL);
+    ensure(0 == touch_init(), NULL);
 
     for (;;) {
         printf("CORE: Starting main loop\n");
@@ -75,7 +75,7 @@ int main(void)
 // MicroPython default exception handler
 
 void __attribute__((noreturn)) nlr_jump_fail(void *val) {
-    trassert(0, "uncaught exception");
+    ensure(0, "uncaught exception");
 }
 
 void PendSV_Handler(void) {
diff --git a/embed/firmware/mphalport.c b/embed/firmware/mphalport.c
index 979843835..74986fb45 100644
--- a/embed/firmware/mphalport.c
+++ b/embed/firmware/mphalport.c
@@ -6,7 +6,7 @@ static int vcp_iface_num = -1;
 
 int mp_hal_stdin_rx_chr(void) {
 
-    trassert(vcp_iface_num >= 0, "vcp stdio is not configured");
+    ensure(vcp_iface_num >= 0, "vcp stdio is not configured");
 
 #define VCP_READ_TIMEOUT  25
     uint8_t c = 0;
diff --git a/embed/trezorhal/common.c b/embed/trezorhal/common.c
index f141fa1d1..8f881751d 100644
--- a/embed/trezorhal/common.c
+++ b/embed/trezorhal/common.c
@@ -34,7 +34,7 @@ uint32_t __stack_chk_guard;
 
 void __attribute__((noreturn)) __stack_chk_fail(void)
 {
-    trassert(0, "Stack smashing detected");
+    ensure(0, "Stack smashing detected");
 }
 
 #ifndef NDEBUG
diff --git a/embed/trezorhal/common.h b/embed/trezorhal/common.h
index bab22eabe..d59f15105 100644
--- a/embed/trezorhal/common.h
+++ b/embed/trezorhal/common.h
@@ -14,7 +14,7 @@ void periph_init(void);
 
 void __attribute__((noreturn)) __fatal_error(const char *expr, const char *msg, const char *file, int line, const char *func);
 
-#define trassert(expr, msg) ((expr) ? (void)0 : __fatal_error(#expr, msg, __FILE__, __LINE__, __func__))
+#define ensure(expr, msg) ((expr) ? (void)0 : __fatal_error(#expr, msg, __FILE__, __LINE__, __func__))
 
 void jump_to(uint32_t address);
 
diff --git a/embed/unix/common.h b/embed/unix/common.h
index 43c219d84..1fa0d689b 100644
--- a/embed/unix/common.h
+++ b/embed/unix/common.h
@@ -3,6 +3,6 @@
 
 void __attribute__((noreturn)) __fatal_error(const char *expr, const char *msg, const char *file, int line, const char *func);
 
-#define trassert(expr, msg) ((expr) ? (void)0 : __fatal_error(#expr, msg, __FILE__, __LINE__, __func__))
+#define ensure(expr, msg) ((expr) ? (void)0 : __fatal_error(#expr, msg, __FILE__, __LINE__, __func__))
 
 #endif