diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolchain.configure
index 335bfc888125..5c6e5ad00d73 100644
--- a/build/moz.configure/toolchain.configure
+++ b/build/moz.configure/toolchain.configure
@@ -3010,7 +3010,7 @@ def make_shared_library(target, compiler):
 
     cc = ["$(CC)", "$(COMPUTED_C_LDFLAGS)"]
     cxx = ["$(CXX)", "$(COMPUTED_CXX_LDFLAGS)"]
-    flags = ["$(PGO_CFLAGS)", "$(DSO_LDOPTS)"]
+    flags = ["$(DSO_LDOPTS)"]
     output = ["-o", "$@"]
 
     if target.kernel == "Darwin":
diff --git a/config/rules.mk b/config/rules.mk
index 9916fcdbddf8..f1eb7fd0819a 100644
--- a/config/rules.mk
+++ b/config/rules.mk
@@ -421,7 +421,7 @@ $(PROGRAM): $(PROGOBJS) $(STATIC_LIBS) $(EXTRA_DEPS) $(call resfile,$(PROGRAM))
 ifeq (_WINNT,$(GNU_CC)_$(OS_ARCH))
 	$(LINKER) -OUT:$@ -PDB:$(LINK_PDBFILE) -IMPLIB:$(basename $(@F)).lib $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(MOZ_PROGRAM_LDFLAGS) $($(notdir $@)_OBJS) $(filter %.res,$^) $(STATIC_LIBS) $(SHARED_LIBS) $(OS_LIBS)
 else # !WINNT || GNU_CC
-	$(call EXPAND_CC_OR_CXX,$@) -o $@ $(COMPUTED_CXX_LDFLAGS) $(PGO_CFLAGS) $($(notdir $@)_OBJS) $(filter %.res,$^) $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(STATIC_LIBS) $(MOZ_PROGRAM_LDFLAGS) $(SHARED_LIBS) $(OS_LIBS)
+	$(call EXPAND_CC_OR_CXX,$@) -o $@ $(COMPUTED_CXX_LDFLAGS) $($(notdir $@)_OBJS) $(filter %.res,$^) $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(STATIC_LIBS) $(MOZ_PROGRAM_LDFLAGS) $(SHARED_LIBS) $(OS_LIBS)
 	$(call py_action,check_binary,$@)
 endif # WINNT && !GNU_CC
 
@@ -462,7 +462,7 @@ $(SIMPLE_PROGRAMS):
 ifeq (_WINNT,$(GNU_CC)_$(OS_ARCH))
 	$(LINKER) -out:$@ -pdb:$(LINK_PDBFILE) $($@_OBJS) $(filter %.res,$^) $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(MOZ_PROGRAM_LDFLAGS) $(STATIC_LIBS) $(SHARED_LIBS) $(OS_LIBS)
 else
-	$(call EXPAND_CC_OR_CXX,$@) $(COMPUTED_CXX_LDFLAGS) $(PGO_CFLAGS) -o $@ $($@_OBJS) $(filter %.res,$^) $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(STATIC_LIBS) $(MOZ_PROGRAM_LDFLAGS) $(SHARED_LIBS) $(OS_LIBS)
+	$(call EXPAND_CC_OR_CXX,$@) $(COMPUTED_CXX_LDFLAGS) -o $@ $($@_OBJS) $(filter %.res,$^) $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(STATIC_LIBS) $(MOZ_PROGRAM_LDFLAGS) $(SHARED_LIBS) $(OS_LIBS)
 	$(call py_action,check_binary,$@)
 endif # WINNT && !GNU_CC