diff --git a/tests/AzimuthalIntegrationTest.cpp b/tests/AzimuthalIntegrationTest.cpp
index efa0ea6d..caa10f5a 100644
--- a/tests/AzimuthalIntegrationTest.cpp
+++ b/tests/AzimuthalIntegrationTest.cpp
@@ -189,7 +189,10 @@ TEST_CASE("AzimuthalIntegrationProfile","[AzimuthalIntegration]") {
 
     REQUIRE(plot.GetPlots()[0].x.size() == mapping.GetBinNumber());
     REQUIRE(plot.GetPlots()[0].y.size() == mapping.GetBinNumber());
-    for (int i = 0; i < mapping.GetBinNumber(); i++) {
+    REQUIRE(plot.GetPlots()[0].x[0] == Catch::Approx(mapping.GetBinToQ()[0]));
+    REQUIRE(std::isnan(plot.GetPlots()[0].y[0]));
+
+    for (int i = 1; i < mapping.GetBinNumber(); i++) {
         REQUIRE(plot.GetPlots()[0].x[i] == Catch::Approx(mapping.GetBinToQ()[i]));
         REQUIRE(plot.GetPlots()[0].y[i] == Catch::Approx(i * 4));
     }
@@ -209,8 +212,8 @@ TEST_CASE("AzimuthalIntegrationProfile_operatorAdd","[AzimuthalIntegration]") {
     std::vector<uint32_t> count(mapping.GetBinNumber());
 
     for (int i = 0; i < mapping.GetBinNumber(); i++) {
-        sum[i] = i * i * 4;
-        count[i] = i;
+        sum[i] = (i + 1) * i * 4;
+        count[i] = i + 1;
     }
     REQUIRE_NOTHROW(profile0.Add(sum, count));
     REQUIRE_NOTHROW(profile1 += profile0);