diff --git a/platformio_tasmota32.ini b/platformio_tasmota32.ini
index 609450169..0eaa854e4 100644
--- a/platformio_tasmota32.ini
+++ b/platformio_tasmota32.ini
@@ -42,4 +42,4 @@ build_flags                 = ${esp32_defaults.build_flags}
 platform                    = https://github.com/tasmota/platform-espressif32/releases/download/v2.0.2solo1/platform-tasmota-espressif32-2.0.2-solo1.zip
 platform_packages           =
 build_unflags               = ${esp32_defaults.build_unflags}
-build_flags                 = ${esp32_defaults.build_flags}
+build_flags                 = ${esp32_defaults.build_flags} -DCORE32SOLO1
diff --git a/platformio_tasmota_env32.ini b/platformio_tasmota_env32.ini
index 2756a60d6..a73ef16e4 100644
--- a/platformio_tasmota_env32.ini
+++ b/platformio_tasmota_env32.ini
@@ -51,7 +51,7 @@ build_flags             = ${env:tasmota32_base.build_flags} -DFIRMWARE_TASMOTA32
 extends                 = env:tasmota32_base
 platform                = ${core32solo1.platform}
 platform_packages       = ${core32solo1.platform_packages}
-build_flags             = ${env:tasmota32_base.build_flags} -DFIRMWARE_TASMOTA32
+build_flags             = ${core32solo1.build_flags} -DFIRMWARE_TASMOTA32
 
 [env:tasmota32-webcam]
 extends                 = env:tasmota32_base
diff --git a/tasmota/my_user_config.h b/tasmota/my_user_config.h
index b77efe515..050bc7c19 100644
--- a/tasmota/my_user_config.h
+++ b/tasmota/my_user_config.h
@@ -98,7 +98,9 @@
 #ifdef ESP32
 #ifdef CONFIG_IDF_TARGET_ESP32C3
 #define OTA_URL                "http://ota.tasmota.com/tasmota32/release/tasmota32c3.bin"  // [OtaUrl]
-#else   // No CONFIG_IDF_TARGET_ESP32C3
+#elif defined(CORE32SOLO1)
+#define OTA_URL                "http://ota.tasmota.com/tasmota32/release/tasmota32solo1.bin"  // [OtaUrl]
+#else
 #define OTA_URL                "http://ota.tasmota.com/tasmota32/release/tasmota32.bin"  // [OtaUrl]
 #endif  //  CONFIG_IDF_TARGET_ESP32C3
 #endif  // ESP32