diff --git a/eventmesh-sdks/eventmesh-sdk-c/README.md b/eventmesh-sdks/eventmesh-sdk-c/README.md
index 95313b77a8..25a4ddabea 100644
--- a/eventmesh-sdks/eventmesh-sdk-c/README.md
+++ b/eventmesh-sdks/eventmesh-sdk-c/README.md
@@ -7,10 +7,14 @@
 ### Build
 1. **build lib**
 ```
+git submodule init
+git submodule update
 make 
 ```
 
 2. **build example**
 ```
+git submodule init
+git submodule update
 make demo
 ```
\ No newline at end of file
diff --git a/eventmesh-sdks/eventmesh-sdk-c/makefile b/eventmesh-sdks/eventmesh-sdk-c/makefile
index 6bcf58a5b3..116182478f 100644
--- a/eventmesh-sdks/eventmesh-sdk-c/makefile
+++ b/eventmesh-sdks/eventmesh-sdk-c/makefile
@@ -53,7 +53,7 @@ all:$(TARGET)
 $(LIB_A_CURL):
 	@echo
 	@echo "Building $^ ==> $@..."
-	@cd $(DIR_CURL) && ./configure --without-ssl
+	@cd $(DIR_CURL) && autoreconf -fi && ./configure --without-ssl
 	@cd $(DIR_CURL) && make
 	@cp -f $(DIR_CURL)/./lib/.libs/libcurl.a $@