diff --git a/src/pulsecore/strbuf.c b/src/pulsecore/strbuf.c
index 540faef9f..8b9527886 100644
--- a/src/pulsecore/strbuf.c
+++ b/src/pulsecore/strbuf.c
@@ -180,3 +180,9 @@ size_t pa_strbuf_printf(pa_strbuf *sb, const char *format, ...) {
             size *= 2;
     }
 }
+
+pa_bool_t pa_strbuf_isempty(pa_strbuf *sb) {
+    pa_assert(sb);
+
+    return sb->length <= 0;
+}
diff --git a/src/pulsecore/strbuf.h b/src/pulsecore/strbuf.h
index ac68d7be6..1d2a588fe 100644
--- a/src/pulsecore/strbuf.h
+++ b/src/pulsecore/strbuf.h
@@ -23,6 +23,7 @@
 ***/
 
 #include <pulse/gccmacro.h>
+#include <pulsecore/macro.h>
 
 typedef struct pa_strbuf pa_strbuf;
 
@@ -35,4 +36,6 @@ size_t pa_strbuf_printf(pa_strbuf *sb, const char *format, ...)  PA_GCC_PRINTF_A
 void pa_strbuf_puts(pa_strbuf *sb, const char *t);
 void pa_strbuf_putsn(pa_strbuf *sb, const char *t, size_t m);
 
+pa_bool_t pa_strbuf_isempty(pa_strbuf *sb);
+
 #endif