diff --git a/c_src/pcg32.c b/c_src/pcg32.c
index 0def108..d56e89a 100644
--- a/c_src/pcg32.c
+++ b/c_src/pcg32.c
@@ -35,26 +35,36 @@
 #include "rdtsc.h"
 #endif
 
+static __thread uint64_t state = 5573589319906701683ULL;
+
+static uint32_t pcg32(void)
+{
+    uint64_t oldstate = state;
+    state = oldstate * 6364136223846793005ULL;
+    uint32_t xorshifted = ((oldstate >> 18u) ^ oldstate) >> 27u;
+    uint32_t rot = oldstate >> 59u;
+    uint32_t v = (xorshifted >> rot) | (xorshifted << ((-rot) & 31));
+    return v;
+}
+
 uint32_t uniform32(void)
 {
     static __thread bool seeded = false;
-    static __thread uint64_t state;
     if (unlikely(!seeded)) {
+        uint64_t t;
 #ifdef HAVE_RDRAND
-        state = rdrand64();
+        t = rdrand64();
 #else
         uint64_t u;
-        rdtsc(&state, &u);
+        rdtsc(&t, &u);
 #endif
+        pcg32();
+        state += t;
+        pcg32();
         seeded = true;
     }
 
-    uint64_t oldstate = state;
-    state = oldstate * 6364136223846793005ULL;
-    uint32_t xorshifted = ((oldstate >> 18u) ^ oldstate) >> 27u;
-    uint32_t rot = oldstate >> 59u;
-    uint32_t v = (xorshifted >> rot) | (xorshifted << ((-rot) & 31));
-    return v;
+    return pcg32();
 }
 
 ERL_NIF_TERM uniform_1(ErlNifEnv *env,
diff --git a/c_src/stub.c b/c_src/stub.c
index b2d8a3a..957c884 100644
--- a/c_src/stub.c
+++ b/c_src/stub.c
@@ -50,7 +50,7 @@ int main(void)
 
 int main(void)
 {
-    uint32_t modulus = uniform32();
+    uint32_t modulus = uniform32() || uniform32();
     for (size_t i = 0; i < 10000000UL; ++i)
         uniform_1(NULL, 1, (const ERL_NIF_TERM[]){modulus});
     return 0;