diff --git a/src/requirements.cpp b/src/requirements.cpp
index ba5f4a0e712fa..473921f9b5579 100644
--- a/src/requirements.cpp
+++ b/src/requirements.cpp
@@ -736,17 +736,21 @@ bool requirement_data::has_comps( const read_only_visitable &crafting_inv,
 {
     bool retval = true;
     int total_UPS_charges_used = 0;
-    for( const auto &set_of_tools : vec ) {
+    for( const std::vector<T> &set_of_tools : vec ) {
         bool has_tool_in_set = false;
         int UPS_charges_used = std::numeric_limits<int>::max();
         const std::function<void( int )> use_ups = [ &UPS_charges_used ]( int charges ) {
             UPS_charges_used = std::min( UPS_charges_used, charges );
         };
 
-        for( const auto &tool : set_of_tools ) {
+        for( const T &tool : set_of_tools ) {
             if( tool.has( crafting_inv, filter, batch, flags, use_ups ) ) {
                 tool.available = available_status::a_true;
             } else {
+                // Trying to track down why the crafting tests are failing?
+                // Uncomment the below to see the group of requirements that are lacking satisfaction
+                // Add a printf("\n") to the loop above this to separate different groups onto a separate line
+                // printf( "T: %s ", tool.type.str().c_str() );
                 tool.available = available_status::a_false;
             }
             has_tool_in_set = has_tool_in_set || tool.available == available_status::a_true;
diff --git a/tests/crafting_test.cpp b/tests/crafting_test.cpp
index 4113b50e61887..dd5d95b99cb97 100644
--- a/tests/crafting_test.cpp
+++ b/tests/crafting_test.cpp
@@ -428,6 +428,7 @@ TEST_CASE( "tools use charge to craft", "[crafting][charge]" )
         tools.insert( tools.end(), 2, item( "blade" ) );
         tools.insert( tools.end(), 5, item( "cable" ) );
         tools.insert( tools.end(), 2, item( "polycarbonate_sheet" ) );
+        tools.insert( tools.end(), 1, item( "knife_paring" ) );
         tools.emplace_back( "motor_tiny" );
         tools.emplace_back( "power_supply" );
         tools.emplace_back( "scrap" );
@@ -437,8 +438,8 @@ TEST_CASE( "tools use charge to craft", "[crafting][charge]" )
         // - 10 charges of surface heat
 
         WHEN( "each tool has enough charges" ) {
-            item hotplate = tool_with_ammo( "hotplate", 20 );
-            REQUIRE( hotplate.ammo_remaining() == 20 );
+            item hotplate = tool_with_ammo( "hotplate", 30 );
+            REQUIRE( hotplate.ammo_remaining() == 30 );
             tools.push_back( hotplate );
             item soldering = tool_with_ammo( "soldering_iron", 20 );
             REQUIRE( soldering.ammo_remaining() == 20 );
@@ -459,6 +460,7 @@ TEST_CASE( "tools use charge to craft", "[crafting][charge]" )
         WHEN( "multiple tools have enough combined charges" ) {
             tools.insert( tools.end(), 2, tool_with_ammo( "hotplate", 5 ) );
             tools.insert( tools.end(), 2, tool_with_ammo( "soldering_iron", 5 ) );
+            tools.insert( tools.end(), 1, tool_with_ammo( "vac_mold", 4 ) );
 
             THEN( "crafting succeeds, and uses charges from multiple tools" ) {
                 prep_craft( recipe_id( "carver_off" ), tools, true );
@@ -477,9 +479,10 @@ TEST_CASE( "tools use charge to craft", "[crafting][charge]" )
             tools.push_back( soldering_iron );
             item UPS( "UPS_off" );
             item UPS_mag( UPS.magazine_default() );
-            UPS_mag.ammo_set( UPS_mag.ammo_default(), 500 );
+            UPS_mag.ammo_set( UPS_mag.ammo_default(), 510 );
             UPS.put_in( UPS_mag, item_pocket::pocket_type::MAGAZINE_WELL );
             tools.emplace_back( UPS );
+            tools.push_back( tool_with_ammo( "vac_mold", 4 ) );
 
             THEN( "crafting succeeds, and uses charges from the UPS" ) {
                 prep_craft( recipe_id( "carver_off" ), tools, true );