diff --git a/dtool/src/dtoolbase/mutexSpinlockImpl.cxx b/dtool/src/dtoolbase/mutexSpinlockImpl.cxx
index 73f2683ff2..788152422c 100644
--- a/dtool/src/dtoolbase/mutexSpinlockImpl.cxx
+++ b/dtool/src/dtoolbase/mutexSpinlockImpl.cxx
@@ -20,6 +20,8 @@
 #if defined(__i386__) || defined(__x86_64) || defined(_M_IX86) || defined(_M_X64)
 #include <emmintrin.h>
 #define PAUSE() _mm_pause()
+#elif defined(_WIN32)
+#define PAUSE() YieldProcessor()
 #else
 #define PAUSE()
 #endif
diff --git a/panda/src/pipeline/conditionVarSpinlockImpl.cxx b/panda/src/pipeline/conditionVarSpinlockImpl.cxx
index 2b4be0d4e7..c5dc58ff96 100644
--- a/panda/src/pipeline/conditionVarSpinlockImpl.cxx
+++ b/panda/src/pipeline/conditionVarSpinlockImpl.cxx
@@ -21,6 +21,8 @@
 #if defined(__i386__) || defined(__x86_64) || defined(_M_IX86) || defined(_M_X64)
 #include <emmintrin.h>
 #define PAUSE() _mm_pause()
+#elif defined(_WIN32)
+#define PAUSE() YieldProcessor()
 #else
 #define PAUSE()
 #endif
diff --git a/panda/src/pipeline/reMutexSpinlockImpl.cxx b/panda/src/pipeline/reMutexSpinlockImpl.cxx
index de0b2c0355..4ad9b12410 100644
--- a/panda/src/pipeline/reMutexSpinlockImpl.cxx
+++ b/panda/src/pipeline/reMutexSpinlockImpl.cxx
@@ -21,6 +21,8 @@
 #if defined(__i386__) || defined(__x86_64) || defined(_M_IX86) || defined(_M_X64)
 #include <emmintrin.h>
 #define PAUSE() _mm_pause()
+#elif defined(_WIN32)
+#define PAUSE() YieldProcessor()
 #else
 #define PAUSE()
 #endif