diff --git a/tests/iconify.c b/tests/iconify.c
index dc465fce..d1c8d682 100644
--- a/tests/iconify.c
+++ b/tests/iconify.c
@@ -243,6 +243,9 @@ int main(int argc, char** argv)
 
         if (i < window_count)
             break;
+
+        // Workaround for an issue with msvcrt and mintty
+        fflush(stdout);
     }
 
     glfwTerminate();
diff --git a/tests/peter.c b/tests/peter.c
index 4eab10f0..acb93052 100644
--- a/tests/peter.c
+++ b/tests/peter.c
@@ -137,6 +137,9 @@ int main(void)
 
             reopen = GL_FALSE;
         }
+
+        // Workaround for an issue with msvcrt and mintty
+        fflush(stdout);
     }
 
     glfwTerminate();