diff --git a/src/util/FFstrbuf.c b/src/util/FFstrbuf.c
index 70a2a029d..ef049b698 100644
--- a/src/util/FFstrbuf.c
+++ b/src/util/FFstrbuf.c
@@ -73,6 +73,14 @@ void ffStrbufAppendC(FFstrbuf* strbuf, char c)
     strbuf->chars[strbuf->length] = '\0';
 }
 
+void ffStrbufAppendNC(FFstrbuf* strbuf, uint32_t num, char c)
+{
+    ffStrbufEnsureFree(strbuf, num);
+    memset(&strbuf->chars[strbuf->length], c, num);
+    strbuf->length += num;
+    strbuf->chars[strbuf->length] = '\0';
+}
+
 void ffStrbufAppendNS(FFstrbuf* strbuf, uint32_t length, const char* value)
 {
     if(value == NULL || length == 0)
diff --git a/src/util/FFstrbuf.h b/src/util/FFstrbuf.h
index 9e9bce198..704abfd29 100644
--- a/src/util/FFstrbuf.h
+++ b/src/util/FFstrbuf.h
@@ -38,6 +38,7 @@ void ffStrbufClear(FFstrbuf* strbuf);
 
 static inline void ffStrbufAppend(FFstrbuf* __restrict strbuf, const FFstrbuf* __restrict value);
 void ffStrbufAppendC(FFstrbuf* strbuf, char c);
+void ffStrbufAppendNC(FFstrbuf* strbuf, uint32_t num, char c);
 void ffStrbufAppendNS(FFstrbuf* strbuf, uint32_t length, const char* value);
 void ffStrbufAppendNSExludingC(FFstrbuf* strbuf, uint32_t length, const char* value, char exclude);
 void ffStrbufAppendTransformS(FFstrbuf* strbuf, const char* value, int(*transformFunc)(int));
diff --git a/tests/strbuf.c b/tests/strbuf.c
index d35c93e2f..defce5a87 100644
--- a/tests/strbuf.c
+++ b/tests/strbuf.c
@@ -56,6 +56,16 @@ int main(void)
     VERIFY(strbuf.allocated == 0);
     VERIFY(strbuf.length == 0);
 
+    //append(N)C
+
+    ffStrbufAppendC(&strbuf, '1');
+    VERIFY(ffStrbufEqualS(&strbuf, "1"));
+    VERIFY(strbuf.allocated >= 1);
+    ffStrbufAppendNC(&strbuf, 5, '2');
+    VERIFY(ffStrbufEqualS(&strbuf, "122222"));
+    VERIFY(strbuf.allocated >= 6);
+    ffStrbufClear(&strbuf);
+
     //appendS
 
     ffStrbufAppendS(&strbuf, "12345");