diff --git a/gold/i386.cc b/gold/i386.cc
index a65f3a034df..3f1312c8640 100644
--- a/gold/i386.cc
+++ b/gold/i386.cc
@@ -1081,7 +1081,7 @@ Target_i386::record_gnu_property(
 {
   uint32_t val = 0;
 
-  switch (pr_type)
+  switch ((unsigned int) pr_type)
     {
     case elfcpp::GNU_PROPERTY_X86_ISA_1_USED:
     case elfcpp::GNU_PROPERTY_X86_ISA_1_NEEDED:
@@ -1102,7 +1102,7 @@ Target_i386::record_gnu_property(
       break;
     }
 
-  switch (pr_type)
+  switch ((unsigned int) pr_type)
     {
     case elfcpp::GNU_PROPERTY_X86_ISA_1_USED:
       this->isa_1_used_ |= val;
diff --git a/gold/x86_64.cc b/gold/x86_64.cc
index 16bcffc9541..63b551957ef 100644
--- a/gold/x86_64.cc
+++ b/gold/x86_64.cc
@@ -1468,7 +1468,7 @@ Target_x86_64<size>::record_gnu_property(
 {
   uint32_t val = 0;
 
-  switch (pr_type)
+  switch ((unsigned int) pr_type)
     {
     case elfcpp::GNU_PROPERTY_X86_ISA_1_USED:
     case elfcpp::GNU_PROPERTY_X86_ISA_1_NEEDED:
@@ -1489,7 +1489,7 @@ Target_x86_64<size>::record_gnu_property(
       break;
     }
 
-  switch (pr_type)
+  switch ((unsigned int) pr_type)
     {
     case elfcpp::GNU_PROPERTY_X86_ISA_1_USED:
       this->isa_1_used_ |= val;