diff --git a/altbn128/build.sh b/altbn128/build.sh
index 567c033..993cf14 100755
--- a/altbn128/build.sh
+++ b/altbn128/build.sh
@@ -1,8 +1,8 @@
 #!/bin/bash
 
 # delete old build dir, if exists
-rm -rf "/native/src/main/resources/co/rsk/altbn128/" || true && \
-mkdir -p "/native/src/main/resources/co/rsk/altbn128/" && \
+rm -rf /native/src/main/resources/co/rsk/altbn128 && \
+mkdir -p /native/src/main/resources/co/rsk/altbn128/linux && \
 
 # go, clean & build
 go get && \
@@ -10,6 +10,6 @@ make clean && \
 make linux && \
 
 # move to resources
-mv libbn128.so "/native/src/main/resources/co/rsk/altbn128/"
+mv libbn128.so /native/src/main/resources/co/rsk/altbn128/linux
 
 
diff --git a/altbn128/precompile.go b/altbn128/precompile.go
index 37fbbe7..234feb3 100644
--- a/altbn128/precompile.go
+++ b/altbn128/precompile.go
@@ -20,8 +20,8 @@ import (
 	bn256 "./bn256"
 )
 
-//export Java_co_rsk_altbn128_cloudflare_JniBn128_add
-func Java_co_rsk_altbn128_cloudflare_JniBn128_add(env *C.JNIEnv, clazz C.jclass, x C.jbyteArray, len C.jint, y C.jbyteArray) C.jint {
+//export Java_co_rsk_altbn128_JniBn128_add
+func Java_co_rsk_altbn128_JniBn128_add(env *C.JNIEnv, clazz C.jclass, x C.jbyteArray, len C.jint, y C.jbyteArray) C.jint {
 	cData := C.getCByteArray(env, x)
 	slice := C.GoBytes(unsafe.Pointer(cData), len)
 	defer C.releaseCByteArray(env, x, cData)
@@ -36,8 +36,8 @@ func Java_co_rsk_altbn128_cloudflare_JniBn128_add(env *C.JNIEnv, clazz C.jclass,
 	return 1
 }
 
-//export Java_co_rsk_altbn128_cloudflare_JniBn128_mul
-func Java_co_rsk_altbn128_cloudflare_JniBn128_mul(env *C.JNIEnv, clazz C.jclass, x C.jbyteArray, len C.jint, y C.jbyteArray) C.jint {
+//export Java_co_rsk_altbn128_JniBn128_mul
+func Java_co_rsk_altbn128_JniBn128_mul(env *C.JNIEnv, clazz C.jclass, x C.jbyteArray, len C.jint, y C.jbyteArray) C.jint {
 	cData := C.getCByteArray(env, x)
 	slice := C.GoBytes(unsafe.Pointer(cData), len)
 	defer C.releaseCByteArray(env, x, cData)
@@ -52,8 +52,8 @@ func Java_co_rsk_altbn128_cloudflare_JniBn128_mul(env *C.JNIEnv, clazz C.jclass,
 	return 1
 }
 
-//export Java_co_rsk_altbn128_cloudflare_JniBn128_pairing
-func Java_co_rsk_altbn128_cloudflare_JniBn128_pairing(env *C.JNIEnv, clazz C.jclass, x C.jbyteArray, len C.jint, y C.jbyteArray) C.jint {
+//export Java_co_rsk_altbn128_JniBn128_pairing
+func Java_co_rsk_altbn128_JniBn128_pairing(env *C.JNIEnv, clazz C.jclass, x C.jbyteArray, len C.jint, y C.jbyteArray) C.jint {
 	cData := C.getCByteArray(env, x)
 	slice := C.GoBytes(unsafe.Pointer(cData), len)
 	defer C.releaseCByteArray(env, x, cData)