diff --git a/du3/program.c b/du3/program.c
index 42f5d3a..43853eb 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -85,7 +85,7 @@ int main()
                     }
                     else if (!foundEqualSign)
                     {
-                        strncat(num1Temp, &strBuffer[i], 1);
+                        strncat(num2Temp, &strBuffer[i], 1);
                     }
                     else
                     {