diff --git a/wolfcrypt/src/sp_sm2_arm32.c b/wolfcrypt/src/sp_sm2_arm32.c
index 211b1439204..29bc82c613d 100644
--- a/wolfcrypt/src/sp_sm2_arm32.c
+++ b/wolfcrypt/src/sp_sm2_arm32.c
@@ -27,7 +27,11 @@
 
 #ifdef WOLFSSL_SM2
 
-#error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #if defined(WOLFSSL_ESPIDF)
+        /* not used by Espressif ESP-IDF */
+    #else
+        #error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #endif
 
 #endif
 
diff --git a/wolfcrypt/src/sp_sm2_arm64.c b/wolfcrypt/src/sp_sm2_arm64.c
index 5c84948a013..e2b035b7a39 100644
--- a/wolfcrypt/src/sp_sm2_arm64.c
+++ b/wolfcrypt/src/sp_sm2_arm64.c
@@ -27,7 +27,11 @@
 
 #ifdef WOLFSSL_SM2
 
-#error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #if defined(WOLFSSL_ESPIDF)
+        /* not used by Espressif ESP-IDF */
+    #else
+        #error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #endif
 
 #endif
 
diff --git a/wolfcrypt/src/sp_sm2_armthumb.c b/wolfcrypt/src/sp_sm2_armthumb.c
index 5d26e27be9e..d6f8ef2f9b0 100644
--- a/wolfcrypt/src/sp_sm2_armthumb.c
+++ b/wolfcrypt/src/sp_sm2_armthumb.c
@@ -27,7 +27,11 @@
 
 #ifdef WOLFSSL_SM2
 
-#error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #if defined(WOLFSSL_ESPIDF)
+        /* not used by Espressif ESP-IDF */
+    #else
+        #error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #endif
 
 #endif
 
diff --git a/wolfcrypt/src/sp_sm2_c32.c b/wolfcrypt/src/sp_sm2_c32.c
index 41c40d1ef37..e20da17f352 100644
--- a/wolfcrypt/src/sp_sm2_c32.c
+++ b/wolfcrypt/src/sp_sm2_c32.c
@@ -27,7 +27,11 @@
 
 #ifdef WOLFSSL_SM2
 
-#error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #if defined(WOLFSSL_ESPIDF)
+        /* not used by Espressif ESP-IDF */
+    #else
+        #error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #endif
 
 #endif
 
diff --git a/wolfcrypt/src/sp_sm2_c64.c b/wolfcrypt/src/sp_sm2_c64.c
index ee380165446..90c09f852ee 100644
--- a/wolfcrypt/src/sp_sm2_c64.c
+++ b/wolfcrypt/src/sp_sm2_c64.c
@@ -27,7 +27,11 @@
 
 #ifdef WOLFSSL_SM2
 
-#error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #if defined(WOLFSSL_ESPIDF)
+        /* not used by Espressif ESP-IDF */
+    #else
+        #error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #endif
 
 #endif
 
diff --git a/wolfcrypt/src/sp_sm2_cortexm.c b/wolfcrypt/src/sp_sm2_cortexm.c
index 3bda85f0268..e281cfe9ccf 100644
--- a/wolfcrypt/src/sp_sm2_cortexm.c
+++ b/wolfcrypt/src/sp_sm2_cortexm.c
@@ -27,7 +27,11 @@
 
 #ifdef WOLFSSL_SM2
 
-#error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #if defined(WOLFSSL_ESPIDF)
+        /* not used by Espressif ESP-IDF */
+    #else
+        #error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #endif
 
 #endif
 
diff --git a/wolfcrypt/src/sp_sm2_x86_64.c b/wolfcrypt/src/sp_sm2_x86_64.c
index f73e408344f..2f4d9e5a476 100644
--- a/wolfcrypt/src/sp_sm2_x86_64.c
+++ b/wolfcrypt/src/sp_sm2_x86_64.c
@@ -27,7 +27,11 @@
 
 #ifdef WOLFSSL_SM2
 
-#error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #if defined(WOLFSSL_ESPIDF)
+        /* not used by Espressif ESP-IDF */
+    #else
+        #error "See https://github.com/wolfSSL/wolfsm for implementation of this file"
+    #endif
 
 #endif