diff --git a/README.md b/README.md
index 1704e4d..fb92d6f 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,12 @@ To run CLI extension of this library and let it parse RDB file to json:
       ]}
     }]
 
+To generate formatted print:
+
+    rdb-cli dump.rdb print --key "db%d,%k,%v"
+    db0,key1,value1
+    db0,key2,value2
+    ...
 
 To generate RESP commands:
 
diff --git a/deps/redis/Makefile b/deps/redis/Makefile
index a7b0f13..5dabf04 100644
--- a/deps/redis/Makefile
+++ b/deps/redis/Makefile
@@ -4,7 +4,7 @@ OBJECTS = $(patsubst %,%.o,$(SOURCES))
 OPTIMIZATION?=-O3
 
 STD            = -std=c99
-WARNS          = -Wall -Wextra -pedantic -Werror
+WARNS          = -Wall -Wextra -pedantic
 CFLAGS         = -fPIC $(OPTIMIZATION) $(STD) $(WARNS) -fvisibility=hidden
 DEBUG          = -g3 -DDEBUG=1
 LIBS           =
diff --git a/src/cli/rdb-cli.c b/src/cli/rdb-cli.c
index 7949fb5..ea935af 100644
--- a/src/cli/rdb-cli.c
+++ b/src/cli/rdb-cli.c
@@ -427,7 +427,7 @@ int readCommonOptions(RdbParser *p, int argc, char* argv[], Options *options, in
     return at;
 }
 
-void closeLogFileOnExit() {
+void closeLogFileOnExit(void) {
     if (logfile != NULL)
         fclose(logfile);
 }
diff --git a/src/lib/parser.c b/src/lib/parser.c
index 362ff17..f341cf1 100644
--- a/src/lib/parser.c
+++ b/src/lib/parser.c
@@ -952,7 +952,7 @@ RdbStatus allocFromCache(RdbParser *p,
 
 static inline RdbStatus unpackList(RdbParser *p, unsigned char *lp) {
     unsigned char *eptr, *item;
-    unsigned int itemLen;
+    unsigned int itemLen = 0;
     long long itemVal;
 
     eptr = lpFirst( lp);
diff --git a/test/test_common.c b/test/test_common.c
index de217db..21443f5 100644
--- a/test/test_common.c
+++ b/test/test_common.c
@@ -475,7 +475,7 @@ int getRedisPort(void) {
     return redisPort[currRedisInst];
 }
 
-void setValgrind() {
+void setValgrind(void) {
     useValgrind = 1;
 }
 
@@ -503,7 +503,7 @@ void checkValgrindLog(const char *filename) {
 /* Redis OSS does not support restoring module auxiliary data. This feature
  * is currently available only in Redis Enterprise. There are plans to bring
  * this functionality to Redis OSS in the near future. */
-int isSupportRestoreModuleAux() {
+int isSupportRestoreModuleAux(void) {
     static int supported = -1;   /* -1=UNINIT, 0=NO, 1=YES */
     if (supported == -1) {
         char *res = sendRedisCmd("RESTOREMODAUX", REDIS_REPLY_ERROR, NULL);
@@ -585,7 +585,7 @@ static unsigned char xorstr(const char *str) {
 #define BUFFER_SIZE 1024
 static int pipe_in[2], pipe_out[2];
 static pid_t pid = -1;
-void start_json_sign_service() {
+void start_json_sign_service(void) {
     if (pipe(pipe_in) == -1 || pipe(pipe_out) == -1) {
         perror("pipe failed");
         exit(1);
diff --git a/test/test_common.h b/test/test_common.h
index f22b0b6..289a0a5 100644
--- a/test/test_common.h
+++ b/test/test_common.h
@@ -44,7 +44,7 @@ void assert_json_equal(const char *f1, const char *f2, int ignoreListOrder);
 /* Test against Redis Server */
 void setRedisInstallFolder(const char *path);
 int getRedisPort(void);
-void setValgrind();
+void setValgrind(void);
 void setupRedisServer(const char *extraArgs);
 const char *getTargetRedisVersion(int *major, int *minor); /* call only after setupRedisServer() */
 void teardownRedisServer(void);