diff --git a/src/pulsecore/core-util.c b/src/pulsecore/core-util.c
index 1dad507a4..452630654 100644
--- a/src/pulsecore/core-util.c
+++ b/src/pulsecore/core-util.c
@@ -23,6 +23,7 @@
 #include <config.h>
 #endif
 
+#include <math.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <signal.h>
@@ -2448,6 +2449,11 @@ int pa_atod(const char *s, double *ret_d) {
         return -1;
     }
 
+    if (isnan(f)) {
+        errno = EINVAL;
+        return -1;
+    }
+
     *ret_d = f;
 
     return 0;