diff --git a/drivers/sensors/pmw33xx_common.c b/drivers/sensors/pmw33xx_common.c
index 61e309ea27..95d0fe6b4b 100644
--- a/drivers/sensors/pmw33xx_common.c
+++ b/drivers/sensors/pmw33xx_common.c
@@ -108,7 +108,7 @@ __attribute__((weak)) bool pmw33xx_check_signature(uint8_t sensor) {
         pmw33xx_read(sensor, REG_Inverse_Product_ID),
     };
 
-    return memcmp(pmw33xx_firmware_signature, signature_dump, sizeof(signature_dump)) == 0;
+    return memcmp_P(signature_dump, pmw33xx_firmware_signature, sizeof(signature_dump)) == 0;
 }
 
 bool pmw33xx_upload_firmware(uint8_t sensor) {
diff --git a/platforms/progmem.h b/platforms/progmem.h
index 3a7a169682..6c4ebcaa01 100644
--- a/platforms/progmem.h
+++ b/platforms/progmem.h
@@ -7,6 +7,7 @@
 #    define PROGMEM
 #    define PSTR(x) x
 #    define PGM_P const char*
+#    define memcmp_P(s1, s2, n) memcmp(s1, s2, n)
 #    define memcpy_P(dest, src, n) memcpy(dest, src, n)
 #    define pgm_read_byte(address_short) *((uint8_t*)(address_short))
 #    define pgm_read_word(address_short) *((uint16_t*)(address_short))